S-1701W2522-U5T1G_技术文档

Rev.2.4_00

HIGH RIPPLE-REJECTION LOW DROPOUT

S-1701 Series

CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

The S-1701 Series, developed based on CMOS technology, is a

voltage regulator with a reset function and integrates a high-

accuracy voltage detector with on-chip delay circuit and a positive

voltage regulator with a low dropout voltage and high output voltage

on one chip.

The S-1701 Series is available in many types according to the

selection of the voltage detector block of the voltage detector,

including a SENSE pin input product. A built-in low on-resistance

transistor provides a low dropout voltage and large output current.

Small ceramic capacitors are available and an external capacitor for

delay is needless. Small SOT-23-5 and SOT-89-5 packages realize

high-density mounting.

Features

Regulator block

1.5 to 5.0 V, selectable in 0.1 V steps.

1.0%

• Output voltage:

• High-accuracy output voltage:

• High peak current capability:

• Built-in ON/OFF circuit:

400 mA output is possible (at V_IN≥ V_OUT(S)+ 2.0 V)^*1

Ensures long battery life.

During power-off: 0.1 µA typ., 1.0 µA max.

• Low ESR capacitor can be used: A ceramic capacitor of 1.0 µF or more can be used for the output

capacitor.

70 dB typ. (at 1.0 kHz)

• High ripple rejection:

• Built-in overcurrent protector:

• Operating voltage range:

Overcurrent of output transistor can be restricted.

2.0 to 6.5 V

Detector block

1.5 to 5.5 V, selectable in 0.1 V steps.

• Output voltage:

• High-accuracy output voltage:

• Output mode:

1.0%

Nch open-drain active low output

• No need of an external capacitor for delay

• Three delay time settings:

• Operating voltage range:

No delay (60 µs), 50 ms, 100 ms

0.8 to 6.5 V

Whole regulator

• Low current consumption

• Small package:

During operation: 85 µA typ.

SOT-23-5, SOT-89-5

• Lead-free products

*1. Attention should be paid to the power dissipation of the package when the output current is large.

Applications

• Power supply and reset circuit for battery-powered devices

• Power supply for personal communication devices

• Power supply for home appliances

Packages

Package Name

Drawing Code

Tape

Package

MP005-A

UP005-A

Reel

MP005-A

UP005-A

SOT-23-5

SOT-89-5

MP005-A

UP005-A

1

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Block Diagrams

1. S-1701 Series A/ B/ C/ G/ H/ J types

*1

ON/OFF pin :

SENSE pin :

Provided

ON/OFF

VOUT

VIN connection

Overcurrent

protector circuit

+

−

ON/OFF

circuit

Reference

voltage circuit

VIN

VSS

+

−

VDOUT

Reference

Oscillating

counter timer

(Delay circuit)

*1

voltage circuit

*1. Parasitic diode

Figure 1

2. S-1701 Series D/ E/ F/ K/ L/ M types

*1

ON/OFF pin :

SENSE pin :

Provided

ON/OFF

VOUT

VOUT connection

Overcurrent

protector circuit

+

−

ON/OFF

circuit

Reference

voltage circuit

VIN

VSS

+

−

VDOUT

Reference

Oscillating

counter timer

(Delay circuit)

*1

voltage circuit

*1. Parasitic diode

Figure 2

2

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. S-1701 Series N/ P/ Q types

*1

ON/OFF pin :

SENSE pin :

VIN connection

Provided

SENSE

VOUT

Overcurrent

protector circuit

+

−

ON/OFF

circuit

Reference

voltage circuit

VIN

VSS

+

−

VDOUT

Reference

Oscillating

counter timer

(Delay circuit)

*1

voltage circuit

*1. Parasitic diode

Figure 3

4. S-1701 Series R/ S/ T types

*1

ON/OFF pin :

SENSE pin :

VDOUT connection

Provided

SENSE

VOUT

Overcurrent

protector circuit

+

−

ON/OFF

circuit

Reference

voltage circuit

VIN

VSS

+

−

VDOUT

Reference

Oscillating

*1

voltage circuit

counter timer

(Delay circuit)

*1. Parasitic diode

Figure 4

3

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

5. S-1701 Series U/ V/ W types

*1

ON/OFF pin :

SENSE pin :

VIN connection

VOUT

VOUT connection

Overcurrent

protector circuit

+

−

ON/OFF

circuit

Reference

voltage circuit

VIN

VSS

+

−

VDOUT

Reference

Oscillating

counter timer

(Delay circuit)

*1

voltage circuit

*1. Parasitic diode

Figure 5

6. S-1701 Series X/ Y/ Z types

*1

ON/OFF pin :

SENSE pin :

VIN connection

VOUT

Overcurrent

protector circuit

+

−

ON/OFF

circuit

Reference

voltage circuit

VIN

VSS

+

−

VDOUT

Reference

Oscillating

*1

voltage circuit

counter timer

(Delay circuit)

*1. Parasitic diode

Figure 6

4

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Product Name Structure

• The product types, output voltage, detection voltage, and package types for the S-1701 Series can be

selected at the user’s request. Refer to the “1. Product name” for the meanings of the characters in the

product name, “2. Function list according to product type” for product types, and “3. Product name

list” for the full product names.

1. Product name

S-1701

x

xx

-

xxxx

G

Package abbreviation and IC packing

specifications^*1

M5T1: SOT-23-5, tape product

U5T1: SOT-89-5, tape product

Detection voltage^*2

15 to 55

(e.g., when the output voltage is 1.5 V,

it is expressed as 15.)

Output voltage

15 to 50

(e.g., when the output voltage is 1.5 V,

it is expressed as 15.)

Product type^*3

A to Z (I and O are not provided)

*1. Refer to the taping specifications at the end of this book.

*2. In the S-1701D to S-1701F, S-1701K to S-1701M, and S-1701U to S-1701W types (that detect

output voltage), a reset signal may be output due to the undershoot of the output voltage when the

input voltage or load current changes transiently. Therefore, set the detection voltage after

sufficient evaluation using actual devices.

*3. Refer to the “2. Function list according to product type”.

5

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

2. Function list according to product type

Table 1

Regulator Block

ON/OFF Pin

Provided

Detector Block

Product

Type

Release Delay

ON/OFF Logic

Active high

Active low

None

SENSE Pin

Time

VIN connection

No delay (60 µs)

50 ms

A

B

C

D

E

F

(pin not provided)

VIN connection

Provided

(pin not provided)

VIN connection

100 ms

(pin not provided)

VOUT connection

(pin not provided)

VOUT connection

(pin not provided)

VOUT connection

(pin not provided)

VIN connection

No delay (60 µs)

50 ms

100 ms

No delay (60 µs)

50 ms

G

H

J

(pin not provided)

VIN connection

(pin not provided)

VIN connection

100 ms

(pin not provided)

VOUT connection

(pin not provided)

VOUT connection

(pin not provided)

VOUT connection

(pin not provided)

No delay (60 µs)

50 ms

K

L

100 ms

M

N

P

Q

R

S

T

VIN connection

Provided

No delay (60 µs)

50 ms

(pin not provided)

VIN connection

None

(pin not provided)

VIN connection

None

100 ms

(pin not provided)

VDOUT connection

(pin not provided)

VDOUT connection

(pin not provided)

VDOUT connection

(pin not provided)

VIN connection

None

No delay (60 µs)

50 ms

None

100 ms

VOUT connection

(pin not provided)

VOUT connection

(pin not provided)

VOUT connection

(pin not provided)

VIN connection

None

No delay (60 µs)

50 ms

U

V

W

X

Y

Z

(pin not provided)

VIN connection

None

(pin not provided)

VIN connection

None

100 ms

(pin not provided)

VIN connection

None

No delay (60 µs)

50 ms

(pin not provided)

VIN connection

(pin not provided)

VIN connection

None

(pin not provided)

VIN connection

(pin not provided)

VIN connection

None

100 ms

(pin not provided)

6

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. Product name list

3. 1 S-1701 Series A type

ON/OFF pin : Provided

SENSE pin : VIN connection

ON/OFF logic

: Active high

Release delay time : No delay (60 µs)

Table 2

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

SOT-89-5

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.8 V 1.0%

2.5 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

3.1 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

S-1701A1815-M5T1G

S-1701A2520-M5T1G

S-1701A2521-M5T1G

S-1701A2522-M5T1G

S-1701A2728-M5T1G

S-1701A2825-M5T1G

S-1701A3024-M5T1G

S-1701A3025-M5T1G

S-1701A3026-M5T1G

S-1701A3326-M5T1G

S-1701A3327-M5T1G

S-1701A3328-M5T1G

S-1701A3330-M5T1G

S-1701A3331-M5T1G

S-1701A3430-M5T1G

S-1701A5040-M5T1G

S-1701A5041-M5T1G

S-1701A5042-M5T1G

S-1701A5043-M5T1G

S-1701A1815-U5T1G

S-1701A2520-U5T1G

S-1701A2521-U5T1G

S-1701A2522-U5T1G

−

S-1701A3024-U5T1G

S-1701A3025-U5T1G

S-1701A3026-U5T1G

S-1701A3326-U5T1G

S-1701A3327-U5T1G

S-1701A3328-U5T1G

−

S-1701A3430-U5T1G

S-1701A5040-U5T1G

S-1701A5041-U5T1G

S-1701A5042-U5T1G

S-1701A5043-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

7

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

3. 2 S-1701 Series B type

ON/OFF pin : Provided

ON/OFF logic

: Active high

SENSE pin : VIN connection

Release delay time : 50 ms

Table 3

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701B1815-M5T1G

S-1701B2520-M5T1G

S-1701B2521-M5T1G

S-1701B2522-M5T1G

S-1701B3024-M5T1G

S-1701B3025-M5T1G

S-1701B3026-M5T1G

S-1701B3326-M5T1G

S-1701B3327-M5T1G

S-1701B3328-M5T1G

−

S-1701B3430-M5T1G

S-1701B5040-M5T1G

S-1701B5041-M5T1G

S-1701B5042-M5T1G

S-1701B5043-M5T1G

SOT-89-5

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

4.2 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

S-1701B1815-U5T1G

S-1701B2520-U5T1G

S-1701B2521-U5T1G

S-1701B2522-U5T1G

S-1701B3024-U5T1G

S-1701B3025-U5T1G

S-1701B3026-U5T1G

S-1701B3326-U5T1G

S-1701B3327-U5T1G

S-1701B3328-U5T1G

S-1701B3342-U5T1G

S-1701B3430-U5T1G

S-1701B5040-U5T1G

S-1701B5041-U5T1G

S-1701B5042-U5T1G

S-1701B5043-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 3 S-1701 Series C type

ON/OFF pin : Provided

ON/OFF logic

: Active high

SENSE pin : VIN connection

Release delay time : 100 ms

Table 4

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701C1815-M5T1G

S-1701C2520-M5T1G

S-1701C2521-M5T1G

S-1701C2522-M5T1G

S-1701C3024-M5T1G

S-1701C3025-M5T1G

S-1701C3026-M5T1G

S-1701C3326-M5T1G

S-1701C3327-M5T1G

S-1701C3328-M5T1G

S-1701C3430-M5T1G

S-1701C5040-M5T1G

S-1701C5041-M5T1G

S-1701C5042-M5T1G

S-1701C5043-M5T1G

SOT-89-5

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

S-1701C1815-U5T1G

S-1701C2520-U5T1G

S-1701C2521-U5T1G

S-1701C2522-U5T1G

S-1701C3024-U5T1G

S-1701C3025-U5T1G

S-1701C3026-U5T1G

S-1701C3326-U5T1G

S-1701C3327-U5T1G

S-1701C3328-U5T1G

S-1701C3430-U5T1G

S-1701C5040-U5T1G

S-1701C5041-U5T1G

S-1701C5042-U5T1G

S-1701C5043-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

8

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. 4 S-1701 Series D type

ON/OFF pin : Provided

SENSE pin : VOUT connection

ON/OFF logic

: Active high

Release delay time : No delay (60 µs)

Table 5

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

SOT-89-5

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.3 V 1.0%

2.4 V 1.0%

2.6 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

S-1701D1815-M5T1G

S-1701D2520-M5T1G

S-1701D2521-M5T1G

S-1701D2522-M5T1G

S-1701D2523-M5T1G

S-1701D2524-M5T1G

S-1701D2526-M5T1G

S-1701D2722-M5T1G

S-1701D3024-M5T1G

S-1701D3025-M5T1G

S-1701D3026-M5T1G

S-1701D3326-M5T1G

S-1701D3327-M5T1G

S-1701D3328-M5T1G

S-1701D3330-M5T1G

S-1701D3430-M5T1G

S-1701D5040-M5T1G

S-1701D5041-M5T1G

S-1701D5042-M5T1G

S-1701D5043-M5T1G

S-1701D1815-U5T1G

S-1701D2520-U5T1G

S-1701D2521-U5T1G

S-1701D2522-U5T1G

−

S-1701D3024-U5T1G

S-1701D3025-U5T1G

S-1701D3026-U5T1G

S-1701D3326-U5T1G

S-1701D3327-U5T1G

S-1701D3328-U5T1G

−

S-1701D3430-U5T1G

S-1701D5040-U5T1G

S-1701D5041-U5T1G

S-1701D5042-U5T1G

S-1701D5043-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

9

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

3. 5 S-1701 Series E type

ON/OFF pin : Provided

ON/OFF logic

: Active high

SENSE pin : VOUT connection

Release delay time : 50 ms

Table 6

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701E1815-M5T1G

S-1701E2520-M5T1G

S-1701E2521-M5T1G

S-1701E2522-M5T1G

S-1701E2722-M5T1G

S-1701E3024-M5T1G

S-1701E3025-M5T1G

S-1701E3026-M5T1G

S-1701E3326-M5T1G

S-1701E3327-M5T1G

S-1701E3328-M5T1G

S-1701E3330-M5T1G

S-1701E3430-M5T1G

S-1701E5040-M5T1G

S-1701E5041-M5T1G

S-1701E5042-M5T1G

S-1701E5043-M5T1G

SOT-89-5

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

S-1701E1815-U5T1G

S-1701E2520-U5T1G

S-1701E2521-U5T1G

S-1701E2522-U5T1G

−

S-1701E3024-U5T1G

S-1701E3025-U5T1G

S-1701E3026-U5T1G

S-1701E3326-U5T1G

S-1701E3327-U5T1G

S-1701E3328-U5T1G

−

S-1701E3430-U5T1G

S-1701E5040-U5T1G

S-1701E5041-U5T1G

S-1701E5042-U5T1G

S-1701E5043-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 6 S-1701 Series F type

ON/OFF pin : Provided

ON/OFF logic

: Active high

SENSE pin : VOUT connection

Release delay time : 100 ms

Table 7

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701F1815-M5T1G

S-1701F2520-M5T1G

S-1701F2521-M5T1G

S-1701F2522-M5T1G

S-1701F2722-M5T1G

S-1701F3024-M5T1G

S-1701F3025-M5T1G

S-1701F3026-M5T1G

S-1701F3326-M5T1G

S-1701F3327-M5T1G

S-1701F3328-M5T1G

S-1701F3430-M5T1G

S-1701F5040-M5T1G

S-1701F5041-M5T1G

S-1701F5042-M5T1G

S-1701F5043-M5T1G

SOT-89-5

S-1701F1815-U5T1G

S-1701F2520-U5T1G

S-1701F2521-U5T1G

S-1701F2522-U5T1G

−

S-1701F3024-U5T1G

S-1701F3025-U5T1G

S-1701F3026-U5T1G

S-1701F3326-U5T1G

S-1701F3327-U5T1G

S-1701F3328-U5T1G

S-1701F3430-U5T1G

S-1701F5040-U5T1G

S-1701F5041-U5T1G

S-1701F5042-U5T1G

S-1701F5043-U5T1G

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

10

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. 7 S-1701 Series G type

ON/OFF pin : Provided

SENSE pin : VIN connection

ON/OFF logic

: Active low

Release delay time : No delay (60 µs)

Table 8

Output Voltage

2.5 V 1.0%

3.3 V 1.0%

Detection Voltage

SOT-23-5

S-1701G2524-M5T1G

S-1701G3331-M5T1G

SOT-89-5

2.4 V 1.0%

3.1 V 1.0%

−

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 8 S-1701 Series H type

ON/OFF pin : Provided

ON/OFF logic

: Active low

SENSE pin : VIN connection

Release delay time : 50 ms

Table 9

Output Voltage

5.0 V 1.0%

Detection Voltage

4.5 V 1.0%

SOT-23-5

SOT-89-5

S-1701H5045-U5T1G

−

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 9 S-1701 Series N type

ON/OFF pin : VIN connection

SENSE pin : Provided

ON/OFF logic

: None

Release delay time : No delay (60 µs)

Table 10

Output Voltage

1.5 V 1.0%

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

SOT-89-5

1.5 V 1.0%

2.7 V 1.0%

1.5 V 1.0%

S-1701N1515-M5T1G

S-1701N1815-M5T1G

S-1701N1827-M5T1G

S-1701N2515-M5T1G

S-1701N2715-M5T1G

S-1701N3015-M5T1G

S-1701N3315-M5T1G

S-1701N5015-M5T1G

S-1701N1515-U5T1G

S-1701N1815-U5T1G

−

S-1701N2515-U5T1G

S-1701N2715-U5T1G

S-1701N3015-U5T1G

S-1701N3315-U5T1G

S-1701N5015-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

11

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

3. 10 S-1701 Series P type

ON/OFF pin : VIN connection

SENSE pin : Provided

ON/OFF logic

: None

Release delay time : 50 ms

Table 11

Output Voltage

1.5 V 1.0%

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701P1515-M5T1G

S-1701P1815-M5T1G

S-1701P2515-M5T1G

S-1701P2715-M5T1G

S-1701P3015-M5T1G

S-1701P3315-M5T1G

S-1701P5015-M5T1G

SOT-89-5

1.5 V 1.0%

S-1701P1515-U5T1G

S-1701P1815-U5T1G

S-1701P2515-U5T1G

S-1701P2715-U5T1G

S-1701P3015-U5T1G

S-1701P3315-U5T1G

S-1701P5015-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 11 S-1701 Series Q type

ON/OFF pin : VIN connection

SENSE pin : Provided

ON/OFF logic

: None

Release delay time : 100 ms

Table 12

Output Voltage

1.5 V 1.0%

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701Q1515-M5T1G

S-1701Q1815-M5T1G

S-1701Q2515-M5T1G

S-1701Q2715-M5T1G

S-1701Q3015-M5T1G

S-1701Q3315-M5T1G

S-1701Q5015-M5T1G

SOT-89-5

1.5 V 1.0%

S-1701Q1515-U5T1G

S-1701Q1815-U5T1G

S-1701Q2515-U5T1G

S-1701Q2715-U5T1G

S-1701Q3015-U5T1G

S-1701Q3315-U5T1G

S-1701Q5015-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 12 S-1701 Series R type

ON/OFF pin : VDOUT connection

SENSE pin : Provided

ON/OFF logic

: None

Release delay time : No delay (60 µs)

Table 13

Output Voltage

1.5 V 1.0%

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

SOT-89-5

1.5 V 1.0%

S-1701R1515-M5T1G

S-1701R1815-M5T1G

S-1701R2515-M5T1G

S-1701R2715-M5T1G

S-1701R3015-M5T1G

S-1701R3315-M5T1G

S-1701R5015-M5T1G

S-1701R1515-U5T1G

S-1701R1815-U5T1G

S-1701R2515-U5T1G

S-1701R2715-U5T1G

S-1701R3015-U5T1G

S-1701R3315-U5T1G

S-1701R5015-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

12

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. 13 S-1701 Series S type

ON/OFF pin : VDOUT connection

SENSE pin : Provided

ON/OFF logic

: None

Release delay time : 50 ms

Table 14

Output Voltage

1.5 V 1.0%

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701S1515-M5T1G

S-1701S1815-M5T1G

S-1701S2515-M5T1G

S-1701S2715-M5T1G

S-1701S3015-M5T1G

S-1701S3315-M5T1G

S-1701S5015-M5T1G

SOT-89-5

1.5 V 1.0%

S-1701S1515-U5T1G

S-1701S1815-U5T1G

S-1701S2515-U5T1G

S-1701S2715-U5T1G

S-1701S3015-U5T1G

S-1701S3315-U5T1G

S-1701S5015-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 14 S-1701 Series T type

ON/OFF pin : VDOUT connection

SENSE pin : Provided

ON/OFF logic

: None

Release delay time : 100 ms

Table 15

Output Voltage

1.5 V 1.0%

1.8 V 1.0%

2.5 V 1.0%

2.7 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701T1515-M5T1G

S-1701T1815-M5T1G

S-1701T2515-M5T1G

S-1701T2715-M5T1G

S-1701T3015-M5T1G

S-1701T3315-M5T1G

S-1701T3325-M5T1G

S-1701T5015-M5T1G

SOT-89-5

S-1701T1515-U5T1G

S-1701T1815-U5T1G

S-1701T2515-U5T1G

S-1701T2715-U5T1G

S-1701T3015-U5T1G

S-1701T3315-U5T1G

−

1.5 V 1.0%

2.5 V 1.0%

1.5 V 1.0%

S-1701T5015-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

13

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

3. 15 S-1701 Series U type

ON/OFF pin : VIN connection

SENSE pin : VOUT connection

ON/OFF logic

: None

Release delay time : No delay (60 µs)

Table 16

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

SOT-89-5

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

S-1701U1815-M5T1G

S-1701U2520-M5T1G

S-1701U2521-M5T1G

S-1701U2522-M5T1G

S-1701U3024-M5T1G

S-1701U3025-M5T1G

S-1701U3026-M5T1G

S-1701U3326-M5T1G

S-1701U3327-M5T1G

S-1701U3328-M5T1G

S-1701U3430-M5T1G

S-1701U5040-M5T1G

S-1701U5041-M5T1G

S-1701U5042-M5T1G

S-1701U5043-M5T1G

S-1701U1815-U5T1G

S-1701U2520-U5T1G

S-1701U2521-U5T1G

S-1701U2522-U5T1G

S-1701U3024-U5T1G

S-1701U3025-U5T1G

S-1701U3026-U5T1G

S-1701U3326-U5T1G

S-1701U3327-U5T1G

S-1701U3328-U5T1G

S-1701U3430-U5T1G

S-1701U5040-U5T1G

S-1701U5041-U5T1G

S-1701U5042-U5T1G

S-1701U5043-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 16 S-1701 Series V type

ON/OFF pin : VIN connection

SENSE pin : VOUT connection

ON/OFF logic

: None

Release delay time : 50 ms

Table 17

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

S-1701V1815-M5T1G

S-1701V2520-M5T1G

S-1701V2521-M5T1G

S-1701V2522-M5T1G

S-1701V3024-M5T1G

S-1701V3025-M5T1G

S-1701V3026-M5T1G

S-1701V3326-M5T1G

S-1701V3327-M5T1G

S-1701V3328-M5T1G

S-1701V3430-M5T1G

S-1701V5040-M5T1G

S-1701V5041-M5T1G

S-1701V5042-M5T1G

S-1701V5043-M5T1G

SOT-89-5

S-1701V1815-U5T1G

S-1701V2520-U5T1G

S-1701V2521-U5T1G

S-1701V2522-U5T1G

S-1701V3024-U5T1G

S-1701V3025-U5T1G

S-1701V3026-U5T1G

S-1701V3326-U5T1G

S-1701V3327-U5T1G

S-1701V3328-U5T1G

S-1701V3430-U5T1G

S-1701V5040-U5T1G

S-1701V5041-U5T1G

S-1701V5042-U5T1G

S-1701V5043-U5T1G

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

14

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. 17 S-1701 Series W type

ON/OFF pin : VIN connection

SENSE pin : VOUT connection

ON/OFF logic

: None

Release delay time : 100 ms

Table 18

Output Voltage

1.8 V 1.0%

2.5 V 1.0%

3.0 V 1.0%

3.3 V 1.0%

3.4 V 1.0%

5.0 V 1.0%

Detection Voltage

SOT-23-5

SOT-89-5

1.5 V 1.0%

2.0 V 1.0%

2.1 V 1.0%

2.2 V 1.0%

2.4 V 1.0%

2.5 V 1.0%

2.6 V 1.0%

2.7 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

4.0 V 1.0%

4.1 V 1.0%

4.2 V 1.0%

4.3 V 1.0%

S-1701W1815-M5T1G

S-1701W2520-M5T1G

S-1701W2521-M5T1G

S-1701W2522-M5T1G

S-1701W3024-M5T1G

S-1701W3025-M5T1G

S-1701W3026-M5T1G

S-1701W3326-M5T1G

S-1701W3327-M5T1G

S-1701W3328-M5T1G

S-1701W3430-M5T1G

S-1701W5040-M5T1G

S-1701W5041-M5T1G

S-1701W5042-M5T1G

S-1701W5043-M5T1G

S-1701W1815-U5T1G

S-1701W2520-U5T1G

S-1701W2521-U5T1G

S-1701W2522-U5T1G

S-1701W3024-U5T1G

S-1701W3025-U5T1G

S-1701W3026-U5T1G

S-1701W3326-U5T1G

S-1701W3327-U5T1G

S-1701W3328-U5T1G

S-1701W3430-U5T1G

S-1701W5040-U5T1G

S-1701W5041-U5T1G

S-1701W5042-U5T1G

S-1701W5043-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 18 S-1701 Series X type

ON/OFF pin : VIN connection

SENSE pin : VIN connection

ON/OFF logic

: None

Release delay time : No delay (60 µs)

Table 19

Output Voltage

2.2 V 1.0%

3.2 V 1.0%

3.3 V 1.0%

Detection Voltage

SOT-23-5

S-1701X2219-M5T1G

S-1701X3228-M5T1G

SOT-89-5

1.9 V 1.0%

2.8 V 1.0%

3.0 V 1.0%

−

S-1701X3228-U5T1G

S-1701X3330-U5T1G

−

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

3. 19 S-1701 Series Y type

ON/OFF pin : VIN connection

SENSE pin : VIN connection

ON/OFF logic

: None

Release delay time : 50 ms

Table 20

Output Voltage

3.2 V 1.0%

3.3 V 1.0%

Detection Voltage

SOT-23-5

S-1701Y3228-M5T1G

−

SOT-89-5

S-1701Y3228-U5T1G

S-1701Y3330-U5T1G

2.8 V 1.0%

3.0 V 1.0%

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

15

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

3. 20 S-1701 Series Z type

ON/OFF pin : VIN connection

SENSE pin : VIN connection

ON/OFF logic

: None

Release delay time : 100 ms

Table 21

Output Voltage

3.2 V 1.0%

Detection Voltage

2.8 V 1.0%

SOT-23-5

S-1701Z3228-M5T1G

SOT-89-5

S-1701Z3228-U5T1G

Remark

Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.

16

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Pin Configurations

Table 22

SOT-23-5

Top view

Pin No.

Symbol

VIN

VSS

Description

5

4

3

1

2

Input voltage pin

GND pin

Shutdown pin

3

ON/OFF

SENSE

NC^*1

(A, B, C, D, E, F, G, H, J, K, L, M types)

Detector SENSE pin

(N, P, Q, R, S, T types)

No connection

(U, V, W, X, Y, Z types)

1

2

Detector output voltage pin^*2

4

5

VDOUT

VOUT

Regulator output voltage pin

Figure 7

*1. The NC pin is electrically open.

The NC pin can be connected to VIN and VSS.

*2. Due to Nch open drain products, please use the pull-up resistor.

Table 23

SOT-89-5

Top view

Pin No.

Symbol

VIN

VSS

Description

5

4

3

1

2

3

4

Input voltage pin

GND pin

VOUT

Regulator output voltage pin

VDOUT Detector output voltage pin^*2

Shutdown pin

5

ON/OFF

(A, B, C, D, E, F, G, H, J, K, L, M types)

Detector SENSE pin

(N, P, Q, R, S, T types)

No connection

SENSE

NC^*1

1

2

(U, V, W, X, Y, Z types)

*1. The NC pin is electrically open.

Figure 8

The NC pin can be connected to VIN and VSS

*2. Due to Nch open drain products, please use the pull-up resistor.

17

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Absolute Maximum Ratings

Table 24

(Ta = 25 °C unless otherwise specified)

Parameter

Symbol

V_IN

V_ON/OFF

V_SENSE

V_OUT

Absolute Maximum Rating

Unit

V

_SS− 0.3 to V_SS+ 7

Input voltage

V

_SS− 0.3 to V_IN+ 0.3

V

_SS− 0.3 to V_SS+ 7

V

Regulator output voltage

Detector output voltage

R,S,T type

_SS− 0.3 to V_IN+ 0.3

V

_SS− 0.3 to V_SS+ 7

V_DOUT

V

_SS− 0.3 to V_IN+ 0.3

300 (When not mounted on board)

mW

°C

SOT-23-5

600^*1

500 (When not mounted on board)

1000^*1

Power

P_D

dissipation

SOT-89-5

Operating ambient temperature T_opr

Storage temperature

−40 to +85

T_stg

−40 to +125

°C

*1. When mounted on board

[Mounted board]

(1) Board size : 114.3 mm × 76.2 mm × t1.6 mm

(2) Board name : JEDEC STANDARD51-7

Caution The absolute maximum ratings are rated values exceeding which the product could suffer

physical damage. These values must therefore not be exceeded under any conditions.

(1) When mounted on board

(2) When not mounted on board

1200

SOT-89-5

1000

800

600

400

800

SOT-89-5

600

400

SOT-23-5

200

SOT-23-5

0

50

100

150

0

50

100

150

Ambient temperature Ta (°C)

Figure 9 Power Dissipation of Package

18

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Electrical Characteristics

1. S-1701 Series A/ B/ C/ G/ H/ J types

Table 25 (1/2)

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

I_SS

Conditions

Min.

Typ.

Max.

Unit

Circuit

3

Current

V_IN= V_OUT(S)

+

1.0 V, no load

−

85

110

µA

consumption

Regulator block

Test

Parameter

Symbol

V_OUT(E)

Conditions

Min.

Typ.

V_OUT(S)

−

Max.

Unit

V

Circuit

V_OUT(S)

Output voltage^*1

V_IN= V_OUT(S)

V_INV_OUT(S)

+

1.0 V, I_OUT= 30 mA

2.0 V

1

×

0.99

×

1.01

≥

Output current^*2

Dropout voltage^*3

I_OUT

400^*7

−

mA

2

When V_OUT(S)= 4.5 V or higher, V_IN= 6.5 V

V_drop

I_OUT= 100 mA

1.5 V

1.7 V

1.9 V

2.4 V

2.8 V

≤

V_OUT(S)

≤

1.6 V

1.8 V

2.3 V

2.7 V

5.0 V

0.50

0.54

0.34

0.19

0.16

0.14

0.58

0.38

0.29

0.25

0.21

V

1

−

∆

V_OUT1

Line regulation

V_OUT(S)

V_IN= V_OUT(S)

+

0.5 V

≤

V_IN

≤

6.5 V, I_OUT= 30 mA

I_OUT100 mA

−

0.05

20

0.2

40

%/V

1

∆

V_INV_OUT

•

Load regulation

Output voltage

temperature

+

1.0 V, 1.0 mA

≤

mV

∆

V_OUT2

∆

V_OUT

+

1.0 V, I_OUT= 30 mA

ppm/

−

100

350

1

−

40 Ta ≤ +85

≤

°

C^*8

°C

∆

Ta V_OUT

•

coefficient^*4

Current

V_IN= V_OUT(S)

no load

+

1.0 V, ON/OFF pin = ON,

consumption

during operation

Input voltage

ON/OFF pin

I_SSR

−

80

103

µA

3

V_IN

−

2

−

6.5

V

−

V_SH

V_IN= V_OUT(S)

+

1.0 V, R_L= 1.0 k

Ω

1.5

−

4

V

input voltage “H”

ON/OFF pin

V_SL

I_SH

I_SL

−

0.3

0.1

−

V

4

5

2

input voltage “L”

ON/OFF pin

V_IN= 6.5 V, V_ON/OFF= 6.5 V

−

0.1

−

µA

input current “H”

ON/OFF pin

V_IN= 6.5 V, V_ON/OFF= 0 V

−

µA

input current “L”

V_IN= V_OUT(S)

+

1.0 V, f = 1.0 kHz,

Ripple rejection

|RR|

I_short

70

160

dB

∆

V_rip= 0.5 Vrms, I_OUT= 30 mA

Short-circuit

current

V_IN= V_OUT(S)

+

1.0 V, ON/OFF pin = ON,

−

mA

V

_OUT= 0 V

19

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Table 25 (2/2)

Detector block

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

V_DET

Conditions

Min.

Typ.

Max.

Unit

Circuit

−

V_DET(S)

−

V_DET(S)

Detection voltage^*5

V

%

6

7

−

V_DET(S)

×

0.99

3

×

1.01

7

Hysteresis width

Output current

V_HYS

I_DOUT

5

−

Nch, V_DOUT= 0.5 V V_IN= 1.4 V

1.0

2.0

3.0

4.0

5.0

3.0

mA

−

(1.5 V ≤ −V_DET(S)

≤

5.5 V)

V_IN= 2.0 V

4.5

5.5

6.0

6.5

mA

7

(2.1 V ≤ −V_DET(S)

V_IN= 3.0 V

(3.1 V ≤ −V_DET(S)

V_IN= 4.0 V

mA

(4.1 V ≤ −V_DET(S)

V

_IN= 5.0 V

mA

(5.1 V ≤ −V_DET(S)

Detection voltage

temperature

coefficient^*6

∆

−V_DET

ppm/

−

40

≤

Ta ≤ +85

°

C^*8

6

−

140

550

°

C

∆

Ta

•

−V_DET

Delay time

60

t_D

100

t_D

6

t_D

No delay (t_D= 60

t_D= 50 ms

µ

s)

−

µ

ms

s

t_D

t_D= 100 ms

×

0.65

×

1.35

Current

V_IN= V_OUT(S)

no load

+

1.0 V, ON/OFF pin = OFF,

consumption

during operation

Input voltage

Current leakage of

output transistor

I_SSD

5

7

8

−

µ

A

V_IN

0.8

6.5

0.1

V

−

I_LEAK

V_IN= 6.5 V, V_DOUT= 6.5 V

7

−

µ

A

*1. V_OUT(S): Specified output voltage

V_OUT(E): Actual output voltage at the fixed load

The output voltage when fixing I_OUT(= 30 mA) and inputting V_OUT(S)+ 1.0 V

*2. The output current at which the output voltage becomes lower than 95% of V_OUT(E)after gradually increasing the output

current.

*3. V_drop

= V_IN1− (V_OUT3× 0.98)

V_OUT3is the output voltage when V_IN

= V_OUT(S)+ 1.0 V and I_OUT= 100 mA.

V_IN1is the input voltage at which the output voltage becomes 98% of V_OUT3after gradually decreasing the input voltage.

*4. The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.

∆V^OUT

∆Ta

∆V^OUT

*2

*3

[

mV/°C

]

^*1= V^OUT(S)

[

V

]

×

ppm/°C ÷1000

[ ]

∆Ta • V^OUT

*1. The change in temperature of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

*5.

−V_DET: Actual detection voltage, −V_DET(S): Specified detection voltage

*6. The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.

−V_DET−V_DET

Ta −V_DET

∆

[mV/°C]^*1= −V_DET(S)(Typ.) [V]^*2

×

[ppm/°C]^*3

÷ 1000

∆

Ta

∆

•

*1. The change in temperature of the detection voltage

*2. Specified detection voltage

*3. Detection voltage temperature coefficient

*7. The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power

dissipation of the package when the output current is large. This specification is guaranteed by design.

*8. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,

not tested in production.

20

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

2. S-1701 Series D/ E/ F/ K/ L/ M types

Table 26 (1/2)

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

I_SS

Conditions

Min.

Typ.

Max.

Unit

Circuit

3

Current

V_IN= V_OUT(S)

+

1.0 V, no load

−

85

110

µA

consumption

Regulator block

Test

Parameter

Symbol

V_OUT(E)

Conditions

Min.

Typ.

V_OUT(S)

−

Max.

Unit

V

Circuit

V_OUT(S)

Output voltage^*1

V_IN= V_OUT(S)

V_INV_OUT(S)

+

1.0 V, I_OUT= 30 mA

2.0 V

1

×

0.99

×

1.01

≥

Output current^*2

Dropout voltage^*3

I_OUT

400^*7

−

mA

2

When V_OUT(S)= 4.5 V or higher, V_IN= 6.5 V

V_drop

I_OUT= 100 mA

1.5 V

1.7 V

1.9 V

2.4 V

2.8 V

≤

V_OUT(S)

≤

1.6 V

1.8 V

2.3 V

2.7 V

5.0 V

0.50

0.54

0.34

0.19

0.16

0.14

0.58

0.38

0.29

0.25

0.21

V

1

−

∆

V_OUT1

Line regulation

V_OUT(S)

+

0.5 V

≤

V_IN

≤

6.5 V, I_OUT= 30 mA

I_OUT100 mA

−

0.05

20

0.2

40

%/V

1

∆

V_INV_OUT

•

Load regulation

Output voltage

temperature

V_IN= V_OUT(S)

+

1.0 V, 1.0 mA

≤

mV

∆

V_OUT2

∆

V_OUT

+

1.0 V, I_OUT= 30 mA

ppm/

−

100

350

1

−40

≤

Ta ≤ +85°C^*8

°C

∆

Ta V_OUT

•

coefficient^*4

Current

V_IN= V_OUT(S)

no load

+

1.0 V, ON/OFF pin = ON,

consumption

during operation

Input voltage

ON/OFF pin

I_SSR

−

80

103

µA

3

V_IN

−

2

−

6.5

V

−

V_SH

V_IN= V_OUT(S)

+

1.0 V, R_L= 1.0 k

Ω

1.5

−

4

V

input voltage “H”

ON/OFF pin

V_SL

I_SH

I_SL

−

0.3

0.1

−

V

4

5

2

input voltage “L”

ON/OFF pin

V_IN= 6.5 V, V_ON/OFF= 6.5 V

V_IN= 6.5 V, V_ON/OFF= 0 V

−

0.1

−

µA

input current “H”

ON/OFF pin

−

µA

input current “L”

V_IN= V_OUT(S)

+

1.0 V, f = 1.0 kHz,

Ripple rejection

|RR|

I_short

70

160

dB

∆

V_rip= 0.5 Vrms, I_OUT= 30 mA

Short-circuit

current

V_IN= V_OUT(S)

+

1.0 V, ON/OFF pin = ON,

−

mA

V

_OUT= 0 V

21

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Table 26 (2/2)

Detector block

(Ta = 25 °C unless otherwise specified)

Parameter

Detection voltage^*5

Symbol

V_DET

Conditions

Min.

Typ.

Max.

Unit

Test Circuit

−

V_DET(S)

−

V_DET(S)

V

9

7

−

V_DET(S)

5

×

0.99

3

×

1.01

7

Hysteresis width

Output current

V_HYS

I_DOUT

%

−

Nch, V_DOUT= 0.5 V

V_IN= 1.4 V

1.0

2.0

3.0

4.0

5.0

3.0

mA

−

(1.5 V ≤ −V_DET(S)

V_IN= 2.0 V

≤

5.5 V)

4.5

5.5

6.0

6.5

mA

7

(2.1 V ≤ −V_DET(S)

V_IN= 3.0 V

(3.1 V ≤ −V_DET(S)

V_IN= 4.0 V

mA

(4.1 V ≤ −V_DET(S)

V

_IN= 5.0 V

mA

(5.1 V ≤ −V_DET(S)

Detection voltage

temperature

∆

−V_DET

ppm/

−

40

≤

Ta ≤ +85

°

C^*8

9

−

140

550

°

C

coefficient^*6

∆

Ta

•

−V_DET

Delay time

60

t_D

100

t_D

9

t_D

No delay (t_D= 60

t_D= 50 ms

µ

s)

µ

ms

s

−

t_D

t_D= 100 ms

×

0.65

×

1.35

Current consumption

during operation

Input voltage

V_IN= V_OUT(S)

no load

+

1.0 V, ON/OFF pin = OFF,

I_SSD

V_IN

−

0.8

−

5

−

7

µ

A

8

6.5

0.1

V

−

Current leakage of

I_LEAK

V_IN= 6.5 V, V_DOUT= 6.5 V

7

µ

A

output transistor

*1. V_OUT(S): Specified output voltage

V

_OUT(E): Actual output voltage at the fixed load

The output voltage when fixing I_OUT

(

=

30 mA) and inputting V_OUT(S)

+

1.0 V

*2. The output current at which the output voltage becomes lower than 95% of V_OUT(E)after gradually increasing the output

current.

*3. V_drop

= V_IN1− (V_OUT3× 0.98)

V_OUT3is the output voltage when V_IN

= V_OUT(S)+ 1.0 V and I_OUT= 100 mA.

V_IN1is the input voltage at which the output voltage becomes 98% of V_OUT3after gradually decreasing the input voltage.

*4. The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.

∆V^OUT

∆Ta

∆V^OUT

∆Ta • V^OUT

*2

*3

[

mV/°C

]

^*1= V^OUT(S)

[

V

]

×

ppm/°C ÷1000

[ ]

*1. The change in temperature of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

*5.

−V_DET: Actual detection voltage, −V_DET(S): Specified detection voltage

*6. The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.

−V_DET−V_DET

Ta −V_DET

∆

[mV/°C]^*1= −V_DET(S)(Typ.) [V]^*2

×

[ppm/°C]^*3

÷ 1000

∆

Ta

∆

•

*1. The change in temperature of the detection voltage

*2. Specified detection voltage

*3. Detection voltage temperature coefficient

*7. The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power

dissipation of the package when the output current is large. This specification is guaranteed by design.

*8. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,

not tested in production.

22

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. S-1701 Series N/ P/ Q types

Table 27 (1/2)

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

I_SS

Conditions

Min.

Typ.

Max.

Unit

Circuit

12

Current

V_IN= V_OUT(S)

+

1.0 V, no load

−

85

110

µA

consumption

Regulator block

Test

Parameter

Symbol

V_OUT(E)

Conditions

Min.

Typ.

V_OUT(S)

−

Max.

Unit

V

Circuit

V_OUT(S)

Output voltage^*1

V_IN= V_OUT(S)

V_INV_OUT(S)

+

1.0 V, I_OUT= 30 mA

2.0 V

10

×

0.99

×

1.01

≥

Output current^*2

Dropout voltage^*3

I_OUT

400^*7

mA

11

−

When V_OUT(S)= 4.5 V or higher, V_IN= 6.5 V

I_OUT= 100 mA

V_drop

0.50

0.54

0.34

0.19

0.16

0.14

0.58

0.38

0.29

0.25

0.21

V

10

1.5 V

1.7 V

1.9 V

2.4 V

2.8 V

≤

V_OUT(S)

≤

1.6 V

1.8 V

2.3 V

2.7 V

5.0 V

−

∆

V_OUT1

Line regulation

V_OUT(S)

+

0.5 V

≤

V_IN

≤

6.5 V, I_OUT= 30 mA

I_OUT100 mA

0.05

20

0.2

40

%/V

10

−

∆

V_INV_OUT

•

Load regulation

Output voltage

temperature

∆

V_OUT2

V_IN= V_OUT(S)

+

1.0 V, 1.0 mA

≤

mV

∆

V_OUT

V

_IN= V_OUT(S)

+

1.0 V, I_OUT= 30 mA

ppm/

−

100

350

10

−

40

≤

Ta ≤ +85°C^*8

°C

∆

Ta V_OUT

•

coefficient^*4

Input voltage

V_IN

2

6.5

V

−

V_IN= V_OUT(S)

+

1.0 V, f = 1.0 kHz,

Ripple rejection

|RR|

70

dB

13

−

∆

V_rip= 0.5 Vrms, I_OUT= 30 mA

Short-circuit

current

I_short

V_IN= V_OUT(S)

+

1.0 V, V_OUT= 0 V

160

mA

11

−

23

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Table 27 (2/2)

Detector block

(Ta = 25 °C unless otherwise specified)

Parameter

Detection voltage^*5

Symbol

V_DET

Conditions

Min.

Typ.

Max.

Unit

Test Circuit

−

V_DET(S)

−

V_DET(S)

−

V_DET(S)

5

V

%

14

15

×

0.99

3

×

1.01

7

Hysteresis width

Output current

V_HYS

I_DOUT

−

Nch, V_DOUT= 0.5 V

V_IN= 1.4 V

1.0

2.0

3.0

4.0

5.0

3.0

−

mA

(1.5 V ≤ −V_DET(S)

V_IN= 2.0 V

≤

5.5 V)

4.5

5.5

6.0

6.5

mA

15

(2.1 V ≤ −V_DET(S)

V_IN= 3.0 V

(3.1 V ≤ −V_DET(S)

V_IN= 4.0 V

(4.1 V ≤ −V_DET(S)

mA

V

_IN= 5.0 V

mA

(5.1 V ≤ −V_DET(S)

Detection voltage

temperature

coefficient^*6

∆

−V_DET

ppm/

−

40

≤

Ta ≤ +85

°

C^*8

−

140

550

100

14

°

C

∆

Ta

•

−V_DET

Delay time

No delay (t_D= 60

t_D= 50 ms

t_D= 100 ms

µ

s)

60

t_D

µs

t_D

14

−

ms

V

t_D

×

0.65

×

1.35

Input voltage

V_IN

I_LEAK

−

0.8

−

6.5

Current leakage of

V_IN= 6.5 V, V_DOUT= 6.5 V

−

0.1

µ

A

15

output transistor

*1. V_OUT(S): Specified output voltage

_OUT(E): Actual output voltage at the fixed load

V

The output voltage when fixing I_OUT

(

=

30 mA) and inputting V_OUT(S)

+

1.0 V

*2. The output current at which the output voltage becomes lower than 95% of V_OUT(E)after gradually increasing the output

current.

*3. V_drop

= V_IN1− (V_OUT3× 0.98)

V_OUT3is the output voltage when V_IN

= V_OUT(S)+ 1.0 V and I_OUT= 100 mA.

V_IN1is the input voltage at which the output voltage becomes 98% of V_OUT3after gradually decreasing the input voltage.

*4. The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.

∆V^OUT

∆Ta

∆V^OUT

*2

*3

[

mV/°C

]

^*1= V^OUT(S)

[

V

]

×

ppm/°C ÷1000

[ ]

∆Ta • V^OUT

*1. The change in temperature of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

*5.

−V_DET: Actual detection voltage, −V_DET(S): Specified detection voltage

*6. The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.

−V_DET−V_DET

Ta −V_DET

∆

[mV/°C]^*1= −V_DET(S)(Typ.) [V]^*2

×

[ppm/°C]^*3

÷ 1000

∆

Ta

∆

•

*1. The change in temperature of the detection voltage

*2. Specified output voltage

*3. Detection voltage temperature coefficient

*7. The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power

dissipation of the package when the output current is large. This specification is guaranteed by design.

*8. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,

not tested in production.

24

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

4. S-1701 Series R/ S/ T types

Table 28 (1/2)

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

I_SS

Conditions

Min.

Typ.

Max.

Unit

Circuit

12

Current

V_IN= V_OUT(S)

+

1.0 V, no load

−

85

110

µA

consumption

Regulator block

Test

Parameter

Symbol

V_OUT(E)

Conditions

Min.

Typ.

V_OUT(S)

−

Max.

Unit

V

Circuit

V_OUT(S)

Output voltage^*1

V_IN= V_OUT(S)

V_INV_OUT(S)

+

1.0 V, I_OUT= 30 mA

2.0 V

10

×

0.99

×

1.01

≥

Output current^*2

Dropout voltage^*3

I_OUT

400^*7

mA

11

−

When V_OUT(S)= 4.5 V or higher, V_IN= 6.5 V

I_OUT= 100 mA

V_drop

0.50

0.54

0.34

0.19

0.16

0.14

0.58

0.38

0.29

0.25

0.21

V

10

1.5 V

1.7 V

≤

V_OUT(S)

≤

1.6 V

1.8 V

2.3 V

2.7 V

5.0 V

−

1.9 V

2.4 V

2.8 V

≤

V_OUT(S)

∆

V_OUT1

Line regulation

Load regulation

Output voltage

temperature

coefficient^*4

V_OUT(S)

+

0.5 V

≤

V_IN

≤

6.5 V, I_OUT= 30 mA

I_OUT100 mA

0.05

20

0.2

40

%/V

10

−

∆

V_INV_OUT

•

∆

V_OUT2

V_IN= V_OUT(S)

+

1.0 V, 1.0 mA

≤

mV

∆

V_OUT

V

_IN= V_OUT(S)

1.0 V, I_OUT= 30 mA

ppm/

10

−

100

350

Ta ≤ +85 °C^*8

°

C

∆

Ta V_OUT

•

−

40

≤

Input voltage

V_IN

2

6.5

V

−

V_IN= V_OUT(S)

+

1.0 V, f = 1.0 kHz,

Ripple rejection

|RR|

I_short

70

dB

13

−

∆

V_rip= 0.5 Vrms, I_OUT= 30 mA

Short-circuit

current

V_IN= V_OUT(S)

+

1.0 V, V_OUT= 0 V

−

160

−

mA

11

25

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Table 28 (2/2)

Detector block

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

V_DET

Conditions

Min.

Typ.

Max.

Unit

Circuit

14

−

V_DET(S)

−

V_DET(S)

Detection voltage^*5

−

V_DET(S)

5

V

%

×

0.99

3

×

1.01

7

Hysteresis width

Output current

V_HYS

I_DOUT

−

14

Nch, V_DOUT= 0.5 V

V_IN= 1.4 V

1.0

2.0

3.0

4.0

5.0

3.0

−

mA

15

(1.5 V ≤ −V_DET(S)

V_IN= 2.0 V

≤

5.5 V)

4.5

5.5

6.0

6.5

mA

15

(2.1 V ≤ −V_DET(S)

V_IN= 3.0 V

(3.1 V ≤ −V_DET(S)

V_IN= 4.0 V

mA

(4.1 V ≤ −V_DET(S)

V

_IN= 5.0 V

mA

(5.1 V ≤ −V_DET(S)

Detection voltage

temperature

coefficient^*6

∆

−

V_DET

ppm/

−

40

≤

Ta ≤ +85

°

C^*8

−

140

550

100

14

°

C

∆

Ta

•

−

Delay time

No delay (t_D= 60

t_D= 50 ms

t_D= 100 ms

µ

s)

60

t_D

us

ms

V

t_D

14

−

t_D

×

0.65

×

1.35

Input voltage

V_IN

−

0.8

−

6.5

Current leakage of

I_LEAK

V_IN= 6.5 V, V_DOUT= 6.5 V

−

0.1

µ

A

15

output transistor

*1. V_OUT(S): Specified output voltage

_OUT(E): Actual output voltage at the fixed load

V

The output voltage when fixing I_OUT(= 30 mA) and inputting V_OUT(S)+ 1.0 V

*2. The output current at which the output voltage becomes lower than 95% of V_OUT(E)after gradually increasing the output

current.

*3. V_drop

= V_IN1− (V_OUT3× 0.98)

V_OUT3is the output voltage when V_IN

= V_OUT(S)+ 1.0 V and I_OUT= 100 mA.

V

_IN1is the input voltage at which the output voltage becomes 98% of V_OUT3after gradually decreasing the input voltage.

*4. The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.

∆V^OUT

∆Ta

∆V^OUT

*2

*3

[

mV/°C

]

^*1= V^OUT(S)

[

V

]

×

ppm/°C ÷1000

[ ]

∆Ta • V^OUT

*1. The change in temperature of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

*5.

−V_DET: Actual detection voltage, −V_DET(S): Specified detection voltage

*6. The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.

−V_DET−V_DET

Ta −V_DET

∆

[mV/°C]^*1= −V_DET(S)(Typ.) [V]^*2

×

[ppm/°C]^*3

÷ 1000

∆

Ta

∆

•

*1. The change in temperature of the detection voltage

*2. Specified detection voltage

*3. Detection voltage temperature coefficient

*7. The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power

dissipation of the package when the output current is large. This specification is guaranteed by design.

*8. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by

design, not tested in production.

26

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

5. S-1701 Series U/ V/ W types

Table 29 (1/2)

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

I_SS

Conditions

Min.

Typ.

Max.

Unit

Circuit

12

Current

V_IN= V_OUT(S)

+

1.0 V, no load

−

85

110

µA

consumption

Regulator block

Test

Parameter

Symbol

V_OUT(E)

Conditions

Min.

Typ.

V_OUT(S)

−

Max.

Unit

V

Circuit

V_OUT(S)

Output voltage^*1

V_IN= V_OUT(S)

V_INV_OUT(S)

+

1.0 V, I_OUT= 30 mA

2.0 V

10

×

0.99

×

1.01

≥

Output current^*2

Dropout voltage^*3

I_OUT

400^*7

mA

11

−

When V_OUT(S)= 4.5 V or higher, V_IN= 6.5 V

I_OUT= 100 mA

V_drop

0.50

0.54

0.34

0.19

0.16

0.14

0.58

0.38

0.29

0.25

0.21

V

10

1.5 V

1.7 V

≤

V_OUT(S)

≤

1.6 V

1.8 V

2.3 V

2.7 V

5.0 V

−

1.9 V

2.4 V

2.8 V

≤

V_OUT(S)

∆

V_OUT1

Line regulation

Load regulation

Output voltage

temperature

coefficient^*4

V_OUT(S)

V_IN= V_OUT(S)

_IN= V_OUT(S)

+

0.5 V

≤

V_IN

≤

6.5 V, I_OUT= 30 mA

I_OUT100 mA

0.05

20

0.2

40

%/V

10

−

∆

V_INV_OUT

•

∆

V_OUT2

+

1.0 V, 1.0 mA

≤

mV

∆

V_OUT

V

−

+

1.0 V, I_OUT= 30 mA

ppm/

10

−

100

350

C^*8

°

C

∆

Ta V_OUT

•

40 Ta ≤ +85 °

≤

Input voltage

V_IN

2

6.5

V

−

V_IN= V_OUT(S)

+

1.0 V, f = 1.0 kHz,

Ripple rejection

|RR|

I_short

70

dB

13

−

∆

V_rip= 0.5 Vrms, I_OUT= 30 mA

Short-circuit

current

V_IN= V_OUT(S)

+

1.0 V, V_OUT= 0 V

−

160

−

mA

11

27

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Table 29 (2/2)

Detector block

Parameter

Detection voltage^*5

(Ta = 25 °C unless otherwise specified)

Symbol

V_DET

Conditions

Min.

Typ.

Max.

Unit

Test Circuit

−

V_DET(S)

−

V_DET(S)

V

16

15

−

V_DET(S)

5

×

0.99

3

×

1.01

7

Hysteresis width

Output current

V_HYS

I_DOUT

%

−

Nch, V_DOUT= 0.5 V

V_IN= 1.4 V

1.0

2.0

3.0

4.0

5.0

3.0

mA

−

(1.5 V ≤ −V_DET(S)

V_IN= 2.0 V

≤

5.5 V)

4.5

5.5

6.0

6.5

mA

15

(2.1 V ≤ −V_DET(S)

V_IN= 3.0 V

(3.1 V ≤ −V_DET(S)

V_IN= 4.0 V

mA

(4.1 V ≤ −V_DET(S)

V

_IN= 5.0 V

mA

(5.1 V ≤ −V_DET(S)

Detection voltage

temperature

coefficient^*6

∆

−

V_DET

ppm/

−

40

≤

Ta ≤ +85

°

C^*8

16

−

140

550

°

C

∆

Ta

•

−

Delay time

16

−

60

t_D

100

t_D

No delay (t_D= 60

t_D= 50 ms

µ

s)

−

µs

t_D

ms

V

t_D= 100 ms

×

0.65

0.8

×

1.35

6.5

Input voltage

V_IN

−

Current leakage of

I_LEAK

V_IN= 6.5 V, V_DOUT= 6.5 V

0.1

15

−

µA

output transistor

*1. V_OUT(S): Specified output voltage

_OUT(E): Actual output voltage at the fixed load

V

The output voltage when fixing I_OUT

(

=

30 mA) and inputting V_OUT(S)

+

1.0 V

*2. The output current at which the output voltage becomes lower than 95% of V_OUT(E)after gradually increasing the output

current.

*3. V_drop

= V_IN1− (V_OUT3× 0.98)

V_OUT3is the output voltage when V_IN

= V_OUT(S)+ 1.0 V and I_OUT= 100 mA.

V

_IN1is the input voltage at which the output voltage becomes 98% of V_OUT3after gradually decreasing the input voltage.

*4. The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.

∆V^OUT

∆Ta

∆V^OUT

*2

*3

[

mV/°C

]

^*1= V^OUT(S)

[

V

]

×

ppm/°C ÷1000

[ ]

∆Ta • V^OUT

*1. The change in temperature of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

*5.

−V_DET: Actual detection voltage, −V_DET(S): Specified detection voltage

*6. The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.

−V_DET−V_DET

Ta −V_DET

∆

[mV/°C]^*1= −V_DET(S)(Typ.) [V]^*2

×

[ppm/°C]^*3

÷ 1000

∆

Ta

∆

•

*1. The change in temperature of the detection voltage

*2. Specified detection voltage

*3. Detection voltage temperature coefficient

*7. The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power

dissipation of the package when the output current is large. This specification is guaranteed by design.

*8. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,

not tested in production.

28

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

6. S-1701 Series X/ Y/ Z types

Table 30 (1/2)

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

I_SS

Conditions

Min.

Typ.

Max.

Unit

Circuit

12

Current

V_IN= V_OUT(S)

+

1.0 V, no load

−

85

110

µA

consumption

Regulator block

Test

Parameter

Symbol

V_OUT(E)

Conditions

Min.

Typ.

V_OUT(S)

−

Max.

Unit

V

Circuit

V_OUT(S)

Output voltage^*1

V_IN= V_OUT(S)

V_INV_OUT(S)

+

1.0 V, I_OUT= 30 mA

2.0 V

10

×

0.99

×

1.01

≥

Output current^*2

Dropout voltage^*3

I_OUT

400^*7

−

mA

11

When V_OUT(S)= 4.5 V or higher, V_IN= 6.5 V

V_drop

I_OUT= 100 mA

1.5 V

1.7 V

≤

V_OUT(S)

≤

1.6 V

0.50

0.54

0.34

0.19

0.16

0.14

0.58

0.38

0.29

0.25

0.21

V

10

1.8 V

−

1.9 V

2.4 V

2.8 V

≤

V_OUT(S)

2.3 V

2.7 V

5.0 V

∆

V_OUT1

Line regulation

Load regulation

Output voltage

temperature

coefficient^*4

V_OUT(S)

V_IN= V_OUT(S)

+

0.5 V

≤

V_IN

≤

6.5 V, I_OUT= 30 mA

I_OUT100 mA

−

0.05

20

0.2

40

%/V

10

∆

V_INV_OUT

•

+

1.0 V, 1.0 mA

≤

mV

∆

V_OUT2

∆

V_OUT

+

1.0 V, I_OUT= 30 mA

ppm/

−

100

350

10

−

40 Ta ≤ +85

≤

°

C^*8

°C

∆

Ta V_OUT

•

Input voltage

V_IN

−

2

−

6.5

V

−

V_IN= V_OUT(S)

+

1.0 V, f = 1.0 kHz,

Ripple rejection

|RR|

I_short

−

70

−

dB

13

∆

V_rip= 0.5 Vrms, I_OUT= 30 mA

Short-circuit

current

V_IN= V_OUT(S)

+

1.0 V, V_OUT= 0 V

−

160

−

mA

11

29

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Table 30 (2/2)

Detector block

(Ta = 25 °C unless otherwise specified)

Test

Parameter

Symbol

V_DET

Conditions

Min.

Typ.

Max.

Unit

Circuit

14

−

V_DET(S)

−

V_DET(S)

Detection voltage^*5

V

%

−

V_DET(S)

5

×

0.99

3

×

1.01

7

Hysteresis width

Output current

V_HYS

I_DOUT

14

−

Nch, V_DOUT= 0.5 V

V_IN= 1.4 V

1.0

2.0

3.0

4.0

5.0

3.0

mA

15

−

(1.5 V ≤ −V_DET(S)

V_IN= 2.0 V

≤

5.5 V)

4.5

5.5

6.0

6.5

mA

15

(2.1 V ≤ −V_DET(S)

V_IN= 3.0 V

(3.1 V ≤ −V_DET(S)

V_IN= 4.0 V

mA

(4.1 V ≤ −V_DET(S)

V

_IN= 5.0 V

mA

(5.1 V ≤ −V_DET(S)

Detection voltage

temperature

coefficient^*6

∆

−

V_DET

ppm/

−

40

≤

Ta ≤ +85

°

C^*8

14

−

140

550

°

C

∆

Ta

•

−

Delay time

14

−

60

t_D

100

t_D

No delay (t_D= 60

t_D= 50 ms

µ

s)

−

µs

t_D

ms

V

t_D= 100 ms

×

0.65

0.8

×

1.35

6.5

Input voltage

V_IN

−

Current leakage of

output transistor

I_LEAK

V_IN= 6.5 V, V_DOUT= 6.5 V

0.1

15

−

µA

*1. V_OUT(S): Specified output voltage

V

_OUT(E): Actual output voltage at the fixed load

The output voltage when fixing I_OUT30 mA) and inputting V_OUT(S)

*2. The output current at which the output voltage becomes lower than 95% of V_OUT(E)after gradually increasing the output current.

*3. V_dropV_IN1(V_OUT30.98)

V_OUT3is the output voltage when V_IN

_IN1is the input voltage at which the output voltage becomes 98% of V_OUT3after gradually decreasing the input voltage.

(

=

+ 1.0 V

=

−

×

=

V_OUT(S)+ 1.0 V and I_OUT= 100 mA.

V

*4. The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.

∆V^OUT

∆Ta

∆V^OUT

∆Ta • V^OUT

*2

*3

[

mV/°C

]

^*1= V^OUT(S)

[

V

]

×

ppm/°C ÷1000

[ ]

*1. The change in temperature of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

*5. −V_DET: Actual detection voltage, −V_DET(S): Specified detection voltage

*6. The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.

−V_DET−V_DET

Ta −V_DET

∆

[mV/°C]^*1= −V_DET(S)(Typ.) [V]^*2

×

[ppm/°C]^*3

÷ 1000

∆

Ta

∆

•

*1. The change in temperature of the detection voltage

*2. Specified detection voltage

*3. Detection voltage temperature coefficient

*7. The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power

dissipation of the package when the output current is large. This specification is guaranteed by design.

*8. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,

not tested in production.

30

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Test Circuits

1.

2.

4.

6.

8.

ON/OFF

VDOUT

VOUT

VSS

ON/OFF

VDOUT

VOUT

VSS

Set to

power on

Set to

100 k

Ω

100 kΩ

power on

+

VIN

A

+

V

Figure 10

Figure 11

3.

A

ON/OFF

VDOUT

VOUT

VSS

Set to

power on

ON/OFF

VDOUT

VOUT

VSS

100 k

Ω

100 k

Ω

+

A

VIN

R_L

+

V

Figure 12

Figure 13

5.

7.

ON/OFF

VDOUT

VOUT

VSS

ON/OFF

VDOUT

VOUT

VSS

Set to

100 kΩ

power on

power off

VIN

R_L

+

V

Figure 14

Figure 15

ON/OFF

VDOUT

VOUT

VSS

ON/OFF

VDOUT

VOUT

VSS

Set to

+

100 k

Ω

power off

A

+

A

VIN

Figure 16

Figure 17

31

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

9.

10.

(SENSE)

VDOUT

VOUT

VSS

VIN

VOUT

ON/OFF

VDOUT

VSS

100 kΩ

+

VIN

100 kΩ

A

+

V

Set to

power off

Figure 18

Figure 19

11.

13.

15.

12.

14.

16.

(SENSE)

VDOUT

VOUT

VSS

(SENSE)

VDOUT

VOUT

VSS

100 k

Ω

100 kΩ

+

A

VIN

A

+

V

Figure 20

Figure 21

(SENSE)

VDOUT

(SENSE)

VDOUT

VOUT

VSS

100 kΩ

VIN

VOUT

VSS

R_L

+

V

Figure 22

Figure 23

(SENSE)

VDOUT

VIN

+

A

VOUT

VIN

100 k

Ω

VOUT

VSS

VDOUT

VSS

+

V

Figure 24

Figure 25

32

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Standard Circuit

1. S-1701 Series A/ B/ C/ D/ E/ F/ G/ H/ J/ K/ L/ M types

Input

VD output

VR output

VDOUT

VOUT

VSS

VIN

*1

C_IN

ON/OFF

*2

C_L

GND

Single GND

*1. C_INis a capacitor for stabilizing the input.

*2. A ceramic capacitor of 1.0 µF or more can be used for C_L.

Figure 26

2. S-1701 Series N/ P/ Q/ R/ S/ T/ U/ V/ W/ X/ Y/ Z types

Input

VD output

VR output

VDOUT

VOUT

VSS

VIN

*1

(SENSE) ^*3

C_IN

*2

C_L

GND

Single GND

*1. C_INis a capacitor for stabilizing the input.

*2. A ceramic capacitor of 1.0 µF or more can be used for C_L.

*3. U/ V/ W/ X/ Y/ Z types of S-1701 series are no connection.

Figure 27

Caution The above connection diagrams and constants will not guarantee successful operation.

Perform thorough evaluation using the actual application to set the constants.

Application Conditions

Input capacitor (C_IN):

Output capacitor (C_L):

ESR of output capacitor:

1.0 µF or more

10 Ω or less

Caution A general series regulator may oscillate, depending on the external components selected.

Check that no oscillation occurs in an application that uses the above capacitor.

33

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Selection of Input and Output Capacitors (C_IN, C_L)

The S-1701 Series requires an output capacitor between the VOUT and VSS pins for phase compensation.

A ceramic capacitor with a capacitance of 1.0 µF or more provides a stable operation in all temperature

ranges. When using an OS capacitor, tantalum capacitor, or aluminum electrolytic capacitor, a capacitor

with a capacitance of 1.0 µF or more and an ESR of 10 Ω or less is required.

The output overshoot and undershoot values, which are transient response characteristics, vary depending

on the output capacitor value. The required capacitance value for the input capacitor differs depending on

the application.

The recommended application values are C_IN= 1.0 µF or more and C_L= 1.0 µF or more, however, perform

thorough evaluation using the actual device, including evaluation of temperature characteristics.

Explanation of Terms

Regulator block

1. Low dropout voltage regulator

The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in

low on-resistance transistor.

2. Low ESR

A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1701 Series enables use of a low

ESR capacitor, such as a ceramic capacitor, for the output-side capacitor (C_L). A capacitor whose ESR is

10 Ω or less can be used.

3. Output voltage (V_OUT

)

The accuracy of the output voltage is ensured at 1.0% under the specified conditions of fixed input

voltage^*1, fixed output current, and fixed temperature.

*1. Differs depending on the product.

Caution If the above conditions change, the output voltage value may vary and exceed the

accuracy range of the output voltage. Please see the electrical characteristics and

attached characteristics data for details.

∆V^OUT1

∆V^IN• VOUT













4. Line regulation

Indicates the dependency of the output voltage on the input voltage. That is, the values show how much

the output voltage changes due to a change in the input voltage with the output current remaining

unchanged.

5. Load regulation (∆V_OUT2

)

Indicates the dependency of the output voltage on the output current. That is, the values show how

much the output voltage changes due to a change in the output current with the input voltage remaining

unchanged.

6. Dropout voltage (V_drop

)

Indicates the difference between the input voltage V_IN1, which is the input voltage (V_IN) at the point where

the output voltage has fallen to 98% of the output voltage value V_OUT3after V_INwas gradually decreased

from V_IN= V_OUT(S)+ 1.0 V, and the output voltage at that point (V_OUT3× 0.98).

V_drop= V_IN1− (V_OUT3× 0.98)

34

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

∆VOUT

∆Ta • VOUT













7. Temperature coefficient of the output voltage

The shaded area in Figure 28 is the range where V_OUTvaries in the operating temperature range when

the temperature coefficient of the output voltage is 100 ppm/°C.

Example of products with V_OUT

=

3.0 V

V_OUT

[V]

+0.30 mV/°C

*1

V_OUT(E)

−0.30 mV/°C

Ta [°C]

−40

25

85

*1. V_OUT(E)is the value of the output voltage measured at 25°C.

Figure 28

A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.

∆V^OUT

∆Ta

∆V^OUT

∆Ta • V^OUT

*2

*3

[

mV/°C

]

^*1= V^OUT(S)

[

V

]

×

ppm/°C ÷1000

[ ]

*1. Change in temperature of output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

35

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Detector block

1. Detection voltage (−V_DET), Release voltage (+V_DET

)

The detection voltage (−V_DET) is the voltage at which the output switches to low. The detection

voltage varies slightly among products of the same specification. The variation of detection voltage

between the specified minimum (−V_DET) Min. and the maximum (−V_DET) Max. is called the detection

voltage range (refer to Figure 29).

e.g. For a product with −V_DET= 3.0 V, the detection voltage is a value in the range of 2.97 V ≤

(−V_DET) ≤ 3.03 V.

This means that some products have 2.97 V for −V_DETand some have 3.03 V.

The release voltage (+V_DET) is the voltage at which the output switches to high. The release voltage

varies slightly among products of the same specification. The variation of release voltages between

the specified minimum (+V_DET) Min. and the maximum (+V_DET) Max. is called the release voltage

range (refer to Figure 30).

e.g. For a product with −V_DET= 3.0 V, the release voltage is a value in the range of 3.059 V ≤

(+V_DET) ≤ 3.242 V.

This means that some products have 3.059 V for +V_DETand some have 3.242 V.

V_IN

Detection

voltage

Release voltage

(+V_DET) Max.

(+V_DET) Min.

(−V_DET) Max.

(−V_DET) Min.

Release

voltage range

Detection

voltage range

V_DOUT

Delay time

V_DOUT

Figure 29 Detection Voltage

Figure 30 Release Voltage

Remark The above figures show the detection voltage and release voltage when the SENSE pin is

connected to VIN.

36

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

2. Hysteresis width (V_HYS

)

The hysteresis width is the voltage difference between the detection voltage and the release voltage.

The existence of the hysteresis width prevents malfunction caused by noise on the input voltage.

3. Delay time (t_D)

The delay time is a time internally measured from the instant at which the voltage input to the VDD pin

exceeds the release voltage (+V_DET) to the point at which the output of the OUT pin inverts.

S-1701 Series A/ D/ G/ K/ N/ R/ U/ X types:

S-1701 Series B/ E/ H/ L/ P/ S/ V/ Y types:

S-1701 Series C/ F/ J/ M/ Q/ T/ W/ Z types:

No delay (60 µs typ.)

50 ms typ.

100 ms typ.

V

V_INor

When t_D= 50 ms, 100 ms

V_DOUT

When t_D= 60 µs

V_SENSE

+V_DET

t_D

Remark The figure shows the case when the SENSE pin is connected to VIN.

Figure 31

4. Through-type current

The through-type current refers to the current that flows instantaneously when the voltage detector

detects and releases a voltage. The through-type current flows at a frequency of 20 kHz during the

release delay time since the internal logic circuit operates.

37

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

5. Oscillation

In applications where a resistor is connected to the input side (Figure 32), the through-type current

which is generated when the output goes from low to high (release) causes a voltage drop equal to

[through-type current] × [input resistance] across the resistor. When the input voltage drops below

the detection voltage as a result, the output voltage goes from high to low. In this state, the through-

type current stops, its resultant voltage drop disappears, and the output goes from low to high. The

through-type current is then generated again, a voltage drop appears, and repeating the process

finally induces oscillation.

VIN

R_a

V_IN

S-1701

detector

block

VDOUT

R_b

VSS

Figure 32 Example of Bad Implementation of Detection Voltage Changer

6. Other characteristics

6. 1 Temperature characteristics of detection voltage

The shaded area in Figure 33 is the range where V_OUTvaries within the operating temperature range

when the temperature coefficient of the output voltage is 140 ppm/°C.

Example of products with −V_DET= 3.0 V

−V_DET

[V]

+0.42 mV/°C

3.000

−0.42 mV/°C

25

85

Ta [°C]

−40

Figure 33 Detection Voltage Temperature Characteristics

38

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

6. 2. Temperature characteristics of release voltage

∆ + V^DET

∆Ta

The temperature change

of the release voltage is calculated by the temperature

∆ − V^DET

∆Ta

change

of the detection voltage as follows:

∆ + V^DET

∆Ta

+V^DET

− V^DET

∆ − V^DET

∆Ta

=

×

The temperature changes of the release voltage and the detection voltage consequently have the

same sign.

6. 3. Temperature characteristics of hysteresis voltage

∆ + V^DET

∆Ta

∆ − V^DET

∆Ta

The temperature change of the hysteresis voltage is expressed as

and is

−

calculated as follows:

∆ + V^DET

∆Ta

∆ − V^DET

∆Ta

V

HYS

∆ − V^DET

∆Ta

−

=

×

− V^DET

39

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Operation

Regulator block

1. Basic operation

Figure 34 shows the block diagram of the regulator block.

The error amplifier compares the reference voltage (V_ref) with V_fb, which is the output voltage resistance

divided by feedback resistors R_sand R_f. It supplies the output transistor with the gate voltage necessary

to ensure a certain output voltage free of any fluctuations of input voltage and temperature.

Output voltage is selectable from the range of 1.5 to 5.0 V in the S-1701 Series.

VIN

*1

Current

supply

Error amplifier

VOUT

−

+

V_ref

R_f

V_fb

Reference

R_s

voltage circuit

VSS

*1. Parasitic diode

Figure 34 Block Diagram (Regulator Block)

2. Output transistor

The S-1701 Series uses a low on-resistance P-channel MOS FET as the output transistor.

Be sure that V_OUTdoes not exceed V_IN+ 0.3 V to prevent the voltage regulator from being damaged due to

inverse current flowing from the VOUT pin through a parasitic diode to the VIN pin.

40

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

3. Shutdown pin (ON/OFF pin) (S-1701 Series A/ B/ C/ D/ E/ F/ G/ H/ J/ K/ L/ M types)

This pin starts and stops the regulator.

When the ON/OFF pin is set to the shutdown level, the operation of all internal circuits stop, and the built-

in P-channel MOS FET output transistor between the VIN pin and VOUT pin is turned off to substantially

reduce the current consumption. At this time, the current consumption equals that consumed by the

detector block, because the internal circuits of the detector are operating. The VOUT pin becomes the

V_SSlevel due to the internally divided resistance of several hundred kΩ between the VOUT pin and VSS

pin.

The structure of the ON/OFF pin is as shown in Figure 35. Since the ON/OFF pin is neither pulled down

nor pulled up internally, do not use it in the floating state. In addition, note that the current consumption

increases if a voltage of 0.3 V to V_IN− 0.3 V is applied to the ON/OFF pin. When the ON/OFF pin is not

used, connect it as follows according to the product type.

• S-1701 Series A/ B/ C/ D/ E/ F types: Connect to the VIN pin.

• S-1701 Series G/ H/ J/ K/ L/ M types: Connect to the VSS pin.

Table 31

Current

Product Type

ON/OFF Pin

Internal Circuits

VOUT Pin Voltage

Consumption

A/ B/ C/ D/ E/ F

G/ H/ J/ K/ L/ M

“H”: Power on

“L”: Shutdown

“H”: Shutdown

“L”: Power on

Operating

Stopped

Operating

Set value

V_SSlevel

Set value

I_SS

I_SSD

I_SS

VIN

ON/OFF

VSS

Figure 35

41

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Detector block

1. Basic operation

Figure 36 shows a block diagram of the detector block.

V_INV_SENSE

R_a

Current

supply

+

−

VDOUT

Delay circuit

*1

R_b

Nch

V_ref

R_c

N1

V_SS

*1. Parasitic diode

Figure 36 Block Diagram (Detector Block)

(1) When the SENSE voltage (V_SENSE) is higher than the release voltage (+V_DET), the Nch

transistor is OFF and V_IN(high) is output. Since the Nch transistor N1 in Figure 36 is OFF,

(R_b+ R_c) • V_SENSE

the comparator input voltage is

.

R_a+ R_b+ R_c

(2) When V_SENSEgoes below +V_DET, V_INis output, as long as V_SENSEremains above the detection

voltage (−V_DET). When the V_SENSEfalls below −V_DET, the Nch transistor becomes ON and V_SSis

output. At this time, the Nch transistor N1 in Figure 36

R_b• V_SENSE

R_a+ R_b

becomes ON, and the comparator input voltage is changed to

.

(3) When V_INfalls below the minimum operating voltage, the output becomes undefined. In this

case the output becomes V_INbecause it is pulled up.

(4) V_SSis output when V_INrises above the minimum operating voltage. The V_SSlevel still appears

even when V_SENSEsurpasses −V_DET, as long as it does not exceed the release voltage +V_DET

.

When V_SENSErises above +V_DET, the Nch transistor becomes OFF and V_INis output. V_INat the

VDOUT pin is delayed for t_Ddue to the delay circuit.

(5) In the S-1701 Series, the detection voltage can be set within the range of 1.5 to 5.5 V

(operating voltage range: 0.8 to 6.5 V).

42

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(1) (2) (3) (4) (5)

V_DD

B

Release voltage (+V_DET

)

Hysteresis width (V_HYS

)

A

Detection voltage (−V_DET

)

Minimum operating voltage

V_SS

V_IN(V_SENSE

)

Output from VDOUT pin

V_SS

t

_D

Remark The above figure shows the case when the SENSE pin is connected to VIN.

Figure 37 Operation

2. Delay circuit

The delay circuit delays the output signal from the time when the SENSE voltage (V_SENSE) exceeds

the release voltage (+V_DET) when V_SENSEis turned on (refer to point B in Figure 37). The output

signal is not delayed when V_SENSEgoes below the detection voltage (−V_DET) (refer to point A in

Figure 37).

The delay time (t_D) is a fixed value that is determined by a built-in clock generator which consists of

constant current an a capacitor, and counter.

3. Delay circuit output voltage detection type (S-1701 Series D/ E/ F/ K/ L/ M/ U/ V/ W types)

If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the

output voltage of the regulator. In the product types in which the output voltage of the regulator is

detected by the detector, if the output voltage is the detection voltage or lower due to the undershoot,

the detector operates and a reset signal may be output. To prevent this, set the value of the input-

and-output capacitor of a regulator so that the undershoot is the minimum value or set a voltage

range that allows the difference between the output voltage and detection voltage to be equal to or

greater than the undershoot.

43

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Explanation for Each Type

1. S-1701 Series A/ B/ C types

The S-1701 Series A/ B/ C types provide a regulator block standby mode realized by an ON/OFF function

that is active high. The internal circuit of the detector operates in the standby mode, so only the current that

the detector consumes flows.

The SENSE pin is connected to the VIN pin in the internal circuit of the detector block, so the voltage applied

to the VIN pin is monitored and a reset signal is output from the VDOUT pin. The built-in counter timer allows

selection of the release delay time from three settings (A: No delay (60 µs), B: 50 ms, C: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning VIN pin input impedance^*1.

2. S-1701 Series D/ E/ F types

The S-1701 Series D/ E/ F types provide a regulator block standby mode realized by an ON/OFF function

that is active high. The internal circuit of the detector operates in the standby mode, so only the current that

the detector consumes flows.

The SENSE pin is connected to the VOUT pin, which is an output of the regulator, in the internal circuit of the

detector block, so the output voltage of the regulator (V_OUT) is monitored and a reset signal is output from the

VDOUT pin^*2. The built-in counter timer allows selection of the release delay time from three settings (D: No

delay (60 µs), E: 50 ms, F: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning the VIN pin input impedance^*1.

3. S-1701 Series G/ H/ J types

The S-1701 Series G/ H/ J types provide a regulator block standby mode realized by an ON/OFF function

that is active low. The internal circuit of the detector operates in the standby mode, so only the current that

the detector consumes flows.

The SENSE pin is connected to the VIN pin in the internal circuit of the detector block, so the voltage applied

to the VIN pin is monitored and a reset signal is output from the VDOUT pin. The built-in counter timer allows

selection of the release delay time from three settings (G: No delay (60 µs), H: 50 ms, J: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning the VIN pin input impedance^*1.

4. S-1701 Series K/ L/ M types

The S-1701 Series K/ L/ M types provide a regulator block standby mode realized by an ON/OFF function

that is active low. The internal circuit of the detector operates in the standby mode, so only the current that

the detector consumes flows.

The SENSE pin is connected to the VOUT pin, which is an output of the regulator in the internal circuit of the

detector block, so the output voltage of the regulator (V_OUT) is monitored and a reset signal is output from the

VDOUT pin^*2. The built-in counter timer allows selection of the release delay time from three settings (K: No

delay (60 µs), L: 50 ms, M: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning the VIN pin input impedance^*1.

44

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

5. S-1701 Series N/ P/ Q types

The S-1701 Series N/ P/ Q types do not provide an ON/OFF function because the ON/OFF pin is connected

to the VIN pin in the circuit.

The detector block features the external SENSE pin, which allows monitoring of other power supplies. The

SENSE pin is configured only by a resistor, so instantaneous current such as through-type current does not

flow through this pin. This allows precise monitoring of the input power supply by connecting the SENSE pin

to the input power supply even when a resistor (R_IN) is connected between the input power supply and the

VIN pin. The built-in counter timer allows selection of the release delay time from three settings (N: No delay

(60 µs), P: 50 ms, Q: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning the VIN pin input impedance^*1.

6. S-1701 Series R/ S/ T types

In the S-1701 Series R/ S/ T types, the VDOUT pin, which is the output pin of the detector, is connected to

the ON/OFF pin of the regulator in the circuit. This allows setting of the regulator to the standby mode at the

same time as the VDOUT pin outputs a RESET signal.

The detector block features an external SENSE pin, which allows monitoring of other power supplies. The

SENSE pin is configured only by a resistor, so instantaneous current such as through-type current does not

flow through this pin. This allows precise monitoring of the input power supply by connecting the SENSE pin

to the input power supply even when a resistor (R_IN) is connected between the input power supply and the

VIN pin. The built-in counter timer allows selection of the release delay time from three settings (R: No delay

(60 µs), S: 50 ms, T: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning the VIN pin input impedance^*1.

7. S-1701 Series U/ V/ W types

The S-1701 Series U/ V/ W types do not provide an ON/OFF function because the ON/OFF pin is connected

to the VIN pin in the circuit.

The SENSE pin is connected to the VOUT pin, which is an output pin of the regulator, in the internal circuit of

the detector block, so the output voltage of the regulator (V_OUT) is monitored and a reset signal is output from

the VDOUT pin^*2. The built-in counter timer allows selection of the release delay time from three settings (U:

No delay (60 µs), V: 50 ms, W: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning the VIN pin input impedance^*1.

8. S-1701 Series X/ Y/ Z types

The S-1701 Series X/ Y/ Z types do not provide an ON/OFF function because the ON/OFF pin is connected

to the VIN pin in the circuit.

The SENSE pin is connected to the VIN pin in the internal circuit of the detector block, so the voltage applied

to the VIN pin is monitored and a reset signal is output from the VDOUT pin. The built-in counter timer allows

selection of the release delay time from three settings (X: No delay (60 µs), Y: 50 ms, Z: 100 ms).

The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care

must be taken concerning the VIN pin input impedance^*1.

45

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

*1. In S-1701 series, when connecting the resistance R_INbetween an input power supply pin and a V_INpin, and

defining the current which flows into R_INas I_IN, V_INpin voltage falls by ∆V_IN= I_IN×R_INat the time of overload,

and changes by ∆V_IN= I_IN×R_INat the time of load change. Thereby, keep in mind that phenomena, such as

output voltage falls and an output oscillation, occur.

*2. If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the output

voltage of the regulator. In the product types in which the output voltage of the regulator is detected by the

detector, if the output voltage is the detection voltage or lower due to the undershoot, the detector operates

and a reset signal may be output. To prevent this, set the value of the input-and-output capacitor of a

regulator so that the undershoot is the minimum value or set a voltage range that allows the difference

between the output voltage and detection voltage to be equal to or greater than the undershoot.

46

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Precautions

• Wiring patterns for the VIN, VOUT and GND pins should be designed so that the impedance is low.

When mounting an output capacitor between the VOUT and VSS pins (C_L) and a capacitor for stabilizing

the input between the VIN and VSS pins (C_IN), the distance from the capacitors to these pins should be

as short as possible.

• Note that the output voltage may increase when a series regulator is used at low load current (1.0 mA or

less).

• Generally, a series regulator may cause oscillation depending on the selection of external parts. The

following conditions are recommended for this IC. However, be sure to perform sufficient evaluation

under the actual usage conditions for selection, including evaluation of temperature characteristics.

Input capacitor (C_IN):

Output capacitor (C_L):

1.0 µF or more

Equivalent series resistance (ESR): 10 Ω or less

• The voltage regulator may oscillate when the impedance of the power supply is high and the input

capacitor is small or an input capacitor is not connected.

• The application conditions for the input voltage, output voltage, and load current should not exceed the

package power dissipation.

• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in

electrostatic protection circuit.

• In determining the output current, attention should be paid to the output current value specified in Tables

25 to 30 in the electrical characteristics and footnote *7 of the table.

• SII claims no responsibility for any disputes arising out of or in connection with any infringement by

products including this IC of patents owned by a third party.

47

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Application Circuit

If the desired detection voltage range is other than those provided by the S-1701 Series, the detection voltage

can be changed by using a divided resistor or diode in the SENSE pin products (N/ P/ Q/ R/ S/ T types) as

shown in Figures 38 and 39.

In the case shown in Figure 38, the hysteresis width also changes at the same time.

1. Changing detection voltage using divided resistors

VDD

*1

R_a

(R_a≤ 75 kΩ)

SENSE

S-1701 Series

N to T types

VDOUT

R_b

VSS

R_a+ R_b

Detection voltage =

Hysteresis width =

• −V_DET

• V_HYS

R_b

R_a+ R_b

R_b

*1. Set R_ato 75 kΩ or lower to prevent oscillation.

Figure 38

Caution If R_aand R_bare larger, the hysteresis may be greater than the result of the above

formula due to the through current of the IC.

2. Changing detection voltage using diode

VDD

V_f1

V_f2

SENSE

S-1701 Series

N to T types

VDOUT

VSS

Detection voltage = V_f1+ V_f2+ (−V_DET

)

Figure 39

Caution The above connection diagrams (Figures 38 and 39) and constants will not

guarantee successful operation. Perform thorough evaluation using the actual

application to set the constants.

48

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Characteristics (Typical Data)

1. Regulator block

(1) Output voltage vs. Output current (when load current increases)

S-1701x15xx (V_OUT= 1.5 V, Ta = 25 °C)

S-1701x30xx (V_OUT= 3.0 V, Ta = 25 °C)

2.0

1.8

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

V

_IN= 3.3 V

2.0 V

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

6.5 V

4.0 V

3.5 V

2.5 V

3.5 V

V

_IN= 1.8 V

6.5 V

5.0 V

600

0

200

400

I_OUT[mA]

0

200

400

_OUT[mA]

600

800

I

S-1701x50xx (V_OUT= 5.0 V, Ta = 25 °C)

6

5

4

3

2

1

0

6.5 V

V

_IN= 5.3 V

Remark In determining the output current,

attention should be paid to the following.

1) The minimum output current value

and footnote *7 in Table 25 to 30 in

the “Electrical Characteristics”.

5.5 V

6.0 V

2) The package power dissipation

0

200

400

_OUT[mA]

600

800

I

(2) Output voltage vs. Input voltage

S-1701x15xx (V_OUT= 1.5 V, Ta = 25 °C)

S-1701x30xx (V_OUT= 3.0 V, Ta = 25 °C)

1.60

3.10

1.55

1.50

3.05

3.00

I_OUT= 1 mA

I

_OUT= 1 mA

30 mA

1.45

30 mA

2.95

100 mA

1.40

2.90

1.0

1.5

2.0

VIN [V]

2.5

3.0

3.5

VIN [V]

4.0

4.5

5.0

3.0

3.5

S-1701x50xx (V_OUT= 5.0 V, Ta = 25 °C)

5.10

5.08

5.06

5.04

5.02

5.00

4.98

I

_OUT= 1 mA

4.96

4.94

4.92

4.90

30 mA

100 mA

4.5

5.0

5.5

VIN [V]

6.0

6.5

7.0

49

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

(3) Dropout voltage vs. Output current

S-1701x15xx (V_OUT= 1.5 V)

S-1701x30xx (V_OUT= 3.0 V)

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

1.2

1.0

0.8

0.6

0.4

0.2

0

25 °C

Ta = 85 °C

–40 °C

−40 °C

0

50 100 150 200 250 300 350 400 450

_OUT[mA]

0

50

100 150

200

250

300 350 400 450

I

I_OUT[mA]

S-1701x50xx (V_OUT= 5.0 V)

0.6

0.5

25 °C

0.4

0.3

0.2

0.1

0

Ta = 85 °C

−40 °C

0

50 100 150 200 250 300 350 400 450

_OUT[mA]

I

(4) Output voltage vs. Ambient temperature

S-1701x15xx (V_OUT= 1.5 V, I_OUT= 30 mA)

S-1701x30xx (V_OUT= 3.0 V, I_OUT= 30 mA)

1.7

1.6

1.5

1.4

1.3

3.2

3.1

3.0

2.9

2.8

0

25

Ta [°C]

50

75 85

0

25

50

75 85

−40 −25

Ta [°C]

S-1701x50xx (V_OUT= 5.0 V, I_OUT= 30 mA)

5.2

5.1

5.0

4.9

4.8

0

25

Ta [°C]

50

75 85

−40 −25

50

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(5) Current consumption vs. Input voltage

S-1701x15xx (V_OUT= 1.5 V)

S-1701x30xx (V_OUT= 3.0 V)

90

80

70

80

70

60

50

40

30

20

10

0

25 °C

−40 °C

25 °C

–40 °C

Ta = 85 °C

60

50

Ta = 85 °C

40

30

20

10

0

1

4

5

6

7

2

3

6

7

0

1

2

3

4

5

VIN [V]

S-1701x50xx (V_OUT= 5.0 V)

90

80

70

60

50

40

30

20

10

0

25 °C

−40 °C

Ta = 85 °C

0

1

4

5

2

3

6

7

VIN [V]

(6) Ripple rejection ratio

S-1701x15xx (V_OUT= 1.5 V, Ta = 25 °C)

S-1701x30xx (V_OUT= 3.0 V, Ta = 25 °C)

V_IN= 4.0 V, C_OUT= 1.0 µF, I_OUT= 30 mA

V_IN= 2.5 V, C_OUT= 1.0 µF, I_OUT= 30 mA

100

80

60

40

20

0

100

80

60

40

20

0

10

1k

Frequency [Hz]

10

100

1k

10k

100k

100

10k

100k

1M

Frequency [Hz]

S-1701x50xx (V_OUT= 5.0 V, Ta = 25 °C)

V_IN= 6.0 V, C_OUT= 1.0 µF, I_OUT= 30 mA

100

80

60

40

20

0

10

1M

100

1k

10k

Frequency [Hz]

100k

51

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

2. Detector block

(1) Detection voltage vs. Ambient temperature

S-1701xxx15 (−V_DET= 1.5 V)

S-1701xxx55 (−V_DET= 5.5 V)

1.70

6.2

6.0

5.8

5.6

5.4

5.2

5.0

1.65

+V_DET

1.60

1.55

1.50

1.45

1.40

+V_DET

–V_DET

75

–40 –25

0

25

50

85

0

25

50

75 85

–40 –25

Ta [°C]

(2) Hysteresis width vs. Ambient temperature

S-1701xxx15 (−V_DET= 1.5 V)

S-1701xxx55 (−V_DET= 5.5 V)

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

0

25

50

75 85

0

25

50

75 85

−40

−25

−40 −25

Ta [°C]

(3) Detector block current consumption vs. Input voltage

S-1701xxx15 (−V_DET= 1.5 V)

S-1701xxx55 (−V_DET= 5.5 V)

4.0

3.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Ta = 85 °C

25 °C

3.0

2.5

2.0

1.5

1.0

0.5

0

−40 °C

0

1

2

3

4

5

6

7

0

1

2

3

4

5

6

7

VIN [V]

(4) Nch transistor output current vs. V_DScharacteristics

S-1701xxx55 (−V_DET= 5.5 V, Ta = 25 °C)

25

5.0 V

20

15

10

5

4.0 V

3.0 V

2.0 V

V

_IN= 1.4 V

0

1

2

3

4

5

6

V_DS[V]

52

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(5) Release delay time vs. Ambient temperature

S-1701xxx15 (V_IN= 1.5 V, −V_DET= 1.5 V, t_D= 50 ms) S-1701xxx55 (V_IN= 5.5 V, −V_DET= 5.5 V, t_D= 100 ms)

100

90

80

70

60

50

40

30

20

10

0

200

180

160

140

120

100

80

60

40

20

0

50

−40

0

25

Ta [°C]

50

75 85

−40

25

Ta [°C]

75 85

−25

S-1701xxx45 (V_IN= 4.5 V, −V_DET= 4.5 V, t_D= 60 µs)

100

90

80

70

60

50

40

30

20

10

0

−40

0

25

Ta [°C]

50

75 85

−25

(6) Minimum operating voltage vs. Input voltage

S-1701xxx15 (5 V pull up: 100 kΩ, −V_DET= 1.5 V)

S-1701xxx15 (V_INpull up: 100 kΩ, −V_DET= 1.5 V)

6

0.6

5

0.5

0.4

4

Ta = 85 °C

25 °C

3

2

1

0

0.3

−40 °C

Ta = 85 °C

0.2

0.1

0

25 °C

−40 °C

0

0.2

0.4 0.6 0.8 1.0 1.2

VIN [V]

1.4

0

0.2

0.4 0.6 0.8 1.0 1.2

VIN [V]

1.4

53

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

Reference Data

(1) Input transient response characteristics

S-1701x15xx (V_IN= 2.5 V

↔

3.5 V, V_OUT=1.5 V, Ta = 25 °C)

S-1701x30xx (V_IN= 4.0 V

I_OUT= 100 mA, t_r= t_f= 5.0

3.08

↔

5.0 V, V_OUT= 3.0 V, Ta = 25 °C)

I_OUT= 100 mA, t_r= t_f= 5.0 µs, C_OUT= 1.0 µF, C_IN= 1.0 µF

µs, C_OUT= 1.0 µF, C_IN= 1.0 µF

1.62

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

6.0

5.0

4.0

3.0

2.0

1.0

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

3.06

V_IN

3.04

3.02

V_OUT

3.00

V_OUT

2.98

2.96_{–40 –20}

_{100 120 140 160 180}0

0

20

40 60 80

–40 –20

20 40

80 100 120 140 160 180

60

0

t [µs]

S-1701x50xx (V_IN= 6.0 V

↔ 6.5 V, V_OUT= 5.0 V, Ta = 25 °C)

I_OUT= 100 mA, t_r= t_f= 5.0 µs, C_OUT= 1.0 µF, C_IN= 1.0 µF

5.12

5.10

5.08

5.06

5.04

5.02

5.00

4.98

4.96

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0

V_IN

V_OUT

–40 –20

20 40

80 100 120 140 160 180

60

0

t [µs]

(2) Load transient response characteristics

S-1701x15xx (V_OUT=1.5 V, Ta = 25 °C)

S-1701x30xx (V_OUT= 3.0 V, Ta = 25 °C)

V_IN

=

2.5 V, t_r

=

t_f

=

5.0

µs, C_OUT

=

1.0

µF, C_IN

=

1.0

µF, I_OUT

=

50↔100 mA

V_IN

=

4.0 V, t_r

=

t_f

=

5.0

µs, C_OUT= 1.0 µF, C_IN= 1.0 µF, I_OUT= 50↔100 mA

1.70

1.65

1.60

1.55

1.50

1.45

1.40

150

100

50

3.20

3.15

3.10

3.05

3.00

2.95

2.90

150

100

50

I_OUT

0

V_OUT

−50

−10

0

−50

−10

₁₆₀0

0

20

40

80 100 120 140 160

0

20

40

60 80 100 120 140

−20

60

−20

t [µs]

S-1701x50xx (V_OUT= 5.0 V, Ta = 25 °C)

V_IN

= 6.0 V, t_r= t_f= 5.0 µs, C_OUT= 1.0 µF, C_IN= 1.0 µF, I_OUT= 50↔100 mA

5.20

5.15

5.10

5.05

5.00

4.95

4.90

150

100

50

I_OUT

0

V_OUT

−50

−10

0

20

40

60

80 100 120 140 160

−20

t [µs]

54

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(3) ON/OFF pin transient response characteristics

S-1701x15xx (V_OUT= 1.5 V, Ta = 25 °C)

S-1701x30xx (V_OUT= 3.0 V, Ta = 25 °C)

V_IN

=

2.5 V, t_r

=

t_f

=

5.0

µs, C_OUT

=

1.0

µF, C_IN

=

1.0

µF, I_OUT

=

100 mA

V_IN

=

4.0 V, t_r

=

t_f

=

5.0

µs, C_OUT

=

1.0

µF, C_IN

=

1.0

µF, I_OUT

=

100 mA

5

3

7

6

5

4

3

2

1

0

6

4

3

2

1

0

2

V_ON/OFF

2

0

−2

−4

−6

1

0

−1

−2

V_OUT

−1

₉₀−3

0

10 20 30 40 50 60 70 80 90

0

10 20 30 40 50 60 70 80

−10

t [µs]

S-1701x50xx (V_OUT= 5.0 V, Ta = 25 °C)

V_IN

=

6.0 V, t_r

=

t_f

=

5.0

µs, C_OUT

=

1.0

µF, C_IN

=

1.0

µF, I_OUT

=

100 mA

9

6

7

5

3

1

3

V_ON/OFF

0

−3

−6

V_OUT

−1

0

10 20 30 40 50 60 70 80 90

−10

t [µs]

(4) Dynamic response characteristics vs. C_OUT

S-1701xxx15 (V_INpull up: 100 k

Ω,

−V_DET

=

1.5 V, Ta

=

25 °C)

S-1701xxx55 (V_INpull up: 100 kΩ, −V_DET= 5.5 V, Ta = 25 °C)

1000

t_PLH

100

10

1

100

10

1

0.1 t_PHL

0.01

0.001

0.1

t_PHL

0.01

0.001

0.1

0.0001 0.001

0.00001

0.01

C_DOUT[µF]

55

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

S-1701 Series

Rev.2.4_00

(a) Measurement conditions of dynamic response vs. C_OUT

1 µs

V_IH

Input voltage

V_IL

t_PHL

t_PLH

V_IN

V_IN×90%

Output voltage

V_IN×10%

V

_IH= 6.5 V, V_IL= 1.3 V

Figure 40

(b) Measurement circuit of the dynamic response for S-1701 Series A/ B/ C/ G/ H/ J/ X/ Y/ Z types

(ON/OFF)

VDOUT

VIN

VOUT

100 kΩ

VSS

+

Set to

+

power off.

V

Figure 41

(c) Measurement circuit of the dynamic response for S-1701 Series D/ E/ F/ K/ L/ M/ U/ V/ W types

VIN

VOUT

(ON/OFF)

VDOUT

+

VSS

+

100 kΩ

V

Set to

power off.

Figure 42

(d) Measurement circuit of the dynamic response for S-1701 Series N/ P/ Q/ R/ S/ T types

SENSE

VDOUT

VIN

VOUT

100 kΩ

+

VSS

+

V

Figure 43

Caution The above connection diagrams will not guarantee successful operation. Perform

thorough evaluation using the actual application to set the constants.

56

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

Marking Specifications

(1) SOT-23-5

SOT-23-5

Top view

(1) to (3): Product code (Refer to Product name vs. Product code)

5

4

(4):

Lot number

(1) (2) (3) (4)

1

2

3

Product name vs. Product code

(a) S-1701 Series A type

(b) S-1701 Series B type

Product Code

Product Name

(1)

P

T

(2)

6

B

6

B

6

(3)

A

B

C

D

Q

A

E

F

(1)

P

(2)

6

8

6

(3)

R

S

T

S-1701A1815-M5T1G

S-1701A2520-M5T1G

S-1701A2521-M5T1G

S-1701A2522-M5T1G

S-1701A2728-M5T1G

S-1701A2825-M5T1G

S-1701A3024-M5T1G

S-1701A3025-M5T1G

S-1701A3026-M5T1G

S-1701A3326-M5T1G

S-1701A3327-M5T1G

S-1701A3328-M5T1G

S-1701A3330-M5T1G

S-1701A3331-M5T1G

S-1701A3430-M5T1G

S-1701A5040-M5T1G

S-1701A5041-M5T1G

S-1701A5042-M5T1G

S-1701A5043-M5T1G

S-1701B1815-M5T1G

S-1701B2520-M5T1G

S-1701B2521-M5T1G

S-1701B2522-M5T1G

S-1701B3024-M5T1G

S-1701B3025-M5T1G

S-1701B3026-M5T1G

S-1701B3326-M5T1G

S-1701B3327-M5T1G

S-1701B3328-M5T1G

S-1701B3430-M5T1G

S-1701B5040-M5T1G

S-1701B5041-M5T1G

S-1701B5042-M5T1G

S-1701B5043-M5T1G

U

V

W

X

Y

Z

P

T

G

H

I

3

Y

4

J

P

C

K

L

5

6

P

7

M

N

O

Remark Please contact the SII marketing department for products with specifications other than the above.

57

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(c) S-1701 Series C type

(d) S-1701 Series D type

Product Code

(1) (2) (3)

Product Name

(1)

(2)

9

(3)

S-1701C1815-M5T1G

S-1701C2520-M5T1G

S-1701C2521-M5T1G

S-1701C2522-M5T1G

S-1701C3024-M5T1G

S-1701C3025-M5T1G

S-1701C3026-M5T1G

S-1701C3326-M5T1G

S-1701C3327-M5T1G

S-1701C3328-M5T1G

S-1701C3430-M5T1G

S-1701C5040-M5T1G

S-1701C5041-M5T1G

S-1701C5042-M5T1G

S-1701C5043-M5T1G

P

A

B

C

D

E

F

G

H

I

S-1701D1815-M5T1G

S-1701D2520-M5T1G

S-1701D2521-M5T1G

S-1701D2522-M5T1G

S-1701D2523-M5T1G

S-1701D2524-M5T1G

S-1701D2526-M5T1G

S-1701D2722-M5T1G

S-1701D3024-M5T1G

S-1701D3025-M5T1G

S-1701D3026-M5T1G

S-1701D3326-M5T1G

S-1701D3327-M5T1G

S-1701D3328-M5T1G

S-1701D3330-M5T1G

S-1701D3430-M5T1G

S-1701D5040-M5T1G

S-1701D5041-M5T1G

S-1701D5042-M5T1G

S-1701D5043-M5T1G

P

T

P

V

C

V

A

B

C

D

P

Q

R

S

E

F

J

K

L

G

H

I

M

N

O

J

A

O

K

L

M

N

Remark Please contact the SII marketing department for products with specifications other than the above.

(e) S-1701 Series E type

(f) S-1701 Series F type

Product Code

Product Name

(1)

(2)

V

(3)

(1)

(2)

W

(3)

S-1701E1815-M5T1G

S-1701E2520-M5T1G

S-1701E2521-M5T1G

S-1701E2522-M5T1G

S-1701E2722-M5T1G

S-1701E3024-M5T1G

S-1701E3025-M5T1G

S-1701E3026-M5T1G

S-1701E3326-M5T1G

S-1701E3327-M5T1G

S-1701E3328-M5T1G

S-1701E3330-M5T1G

S-1701E3430-M5T1G

S-1701E5040-M5T1G

S-1701E5041-M5T1G

S-1701E5042-M5T1G

S-1701E5043-M5T1G

P

T

U

V

W

C

X

Y

Z

3

S-1701F1815-M5T1G

S-1701F2520-M5T1G

S-1701F2521-M5T1G

S-1701F2522-M5T1G

S-1701F2722-M5T1G

S-1701F3024-M5T1G

S-1701F3025-M5T1G

S-1701F3026-M5T1G

S-1701F3326-M5T1G

S-1701F3327-M5T1G

S-1701F3328-M5T1G

S-1701F3430-M5T1G

S-1701F5040-M5T1G

S-1701F5041-M5T1G

S-1701F5042-M5T1G

S-1701F5043-M5T1G

P

F

G

H

I

V

W

V

U

J

V

K

L

V

M

N

O

T

P

Q

R

S

V

4

V

5

W

V

B

A

6

V

7

V

8

V

9

Remark Please contact the SII marketing department for products with specifications other than the above.

58

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(g) S-1701 Series G type

(h) S-1701 Series N type

Product Code

Product Name

(1)

(2)

A

(3)

(1)

P

(2)

W

(3)

Y

Z

9

S-1701G2524-M5T1G

S-1701G3331-M5T1G

T

N

O

S-1701N1515-M5T1G

S-1701N1815-M5T1G

S-1701N1827-M5T1G

S-1701N2515-M5T1G

S-1701N2715-M5T1G

S-1701N3015-M5T1G

S-1701N3315-M5T1G

S-1701N5015-M5T1G

A

3

4

5

6

7

Remark Please contact the SII marketing department for products with specifications other than the above.

(i) S-1701 Series P type

(j) S-1701 Series Q type

Product Code

Product Name

(1)

(2)

X

(3)

I

(1)

(2)

X

(3)

S-1701P1515-M5T1G

S-1701P1815-M5T1G

S-1701P2515-M5T1G

S-1701P2715-M5T1G

S-1701P3015-M5T1G

S-1701P3315-M5T1G

S-1701P5015-M5T1G

P

S-1701Q1515-M5T1G

S-1701Q1815-M5T1G

S-1701Q2515-M5T1G

S-1701Q2715-M5T1G

S-1701Q3015-M5T1G

S-1701Q3315-M5T1G

S-1701Q5015-M5T1G

P

Z

3

4

5

6

7

8

X

J

X

K

L

X

M

N

O

X

Remark Please contact the SII marketing department for products with specifications other than the above.

(k) S-1701 Series R type

(l) S-1701 Series S type

Product Code

Product Name

(1)

(2)

Y

(3)

(1)

(2)

Y

(3)

S-1701R1515-M5T1G

S-1701R1815-M5T1G

S-1701R2515-M5T1G

S-1701R2715-M5T1G

S-1701R3015-M5T1G

S-1701R3315-M5T1G

S-1701R5015-M5T1G

P

E

F

G

H

I

S-1701S1515-M5T1G

S-1701S1815-M5T1G

S-1701S2515-M5T1G

S-1701S2715-M5T1G

S-1701S3015-M5T1G

S-1701S3315-M5T1G

S-1701S5015-M5T1G

P

Q

R

S

Y

T

Y

U

V

Y

J

Y

K

Y

W

Remark Please contact the SII marketing department for products with specifications other than the above.

(m) S-1701 Series T type

(n) S-1701 Series U type

Product Code

Product Name

(1)

(2)

Z

(3)

(1)

(2)

Z

(3)

S-1701T1515-M5T1G

S-1701T1815-M5T1G

S-1701T2515-M5T1G

S-1701T2715-M5T1G

S-1701T3015-M5T1G

S-1701T3315-M5T1G

S-1701T3325-M5T1G

S-1701T5015-M5T1G

P

A

B

C

D

E

F

S-1701U1815-M5T1G

S-1701U2520-M5T1G

S-1701U2521-M5T1G

S-1701U2522-M5T1G

S-1701U3024-M5T1G

S-1701U3025-M5T1G

S-1701U3026-M5T1G

S-1701U3326-M5T1G

S-1701U3327-M5T1G

S-1701U3328-M5T1G

S-1701U3430-M5T1G

S-1701U5040-M5T1G

S-1701U5041-M5T1G

S-1701U5042-M5T1G

S-1701U5043-M5T1G

P

R

S

T

U

V

W

X

Y

Z

3

Z

H

G

Z

8

4

5

6

7

Remark Please contact the SII marketing department for products with specifications other than the above.

59

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(o) S-1701 Series V type

(p) S-1701 Series W type

Product Code

(1) (2) (3)

Product Name

(1)

(2)

7

(3)

S-1701V1815-M5T1G

S-1701V2520-M5T1G

S-1701V2521-M5T1G

S-1701V2522-M5T1G

S-1701V3024-M5T1G

S-1701V3025-M5T1G

S-1701V3026-M5T1G

S-1701V3326-M5T1G

S-1701V3327-M5T1G

S-1701V3328-M5T1G

S-1701V3430-M5T1G

S-1701V5040-M5T1G

S-1701V5041-M5T1G

S-1701V5042-M5T1G

S-1701V5043-M5T1G

P

E

F

G

H

I

S-1701W1815-M5T1G

S-1701W2520-M5T1G

S-1701W2521-M5T1G

S-1701W2522-M5T1G

S-1701W3024-M5T1G

S-1701W3025-M5T1G

S-1701W3026-M5T1G

S-1701W3326-M5T1G

S-1701W3327-M5T1G

S-1701W3328-M5T1G

S-1701W3430-M5T1G

S-1701W5040-M5T1G

S-1701W5041-M5T1G

S-1701W5042-M5T1G

S-1701W5043-M5T1G

P

7

8

X

Y

Z

3

4

J

5

K

L

6

7

M

N

S

O

P

Q

R

8

9

E

A

B

C

D

Remark Please contact the SII marketing department for products with specifications other than the above.

(q) S-1701 Series X type

(r) S-1701 Series Y type

Product Code

Product Name

(1)

(2)

8

(3)

(1)

(2)

8

(3)

S-1701X2219-M5T1G

S-1701X3228-M5T1G

P

K

J

S-1701Y3228-M5T1G

P

O

8

Remark Please contact the SII marketing department for products with specifications other than the above.

(s) S-1701 Series Z type

Product Code

Product Name

(1)

P

(2)

8

(3)

T

S-1701Z3228-M5T1G

Remark Please contact the SII marketing department for products with specifications other than the above.

60

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(2) SOT-89-5

SOT-89-5

Top view

(1) to (3): Product code (refer to Product name vs. Product code)

(4) to (6): Lot number

5

4

1

2

3

Product name vs. Product code

(a) S-1701 Series A type

(b) S-1701 Series B type

Product Code

Product Name

(1)

P

(2)

6

(3)

A

B

C

D

E

F

(1)

(2)

6

8

6

(3)

S-1701A1815-U5T1G

S-1701A2520-U5T1G

S-1701A2521-U5T1G

S-1701A2522-U5T1G

S-1701A3024-U5T1G

S-1701A3025-U5T1G

S-1701A3026-U5T1G

S-1701A3326-U5T1G

S-1701A3327-U5T1G

S-1701A3328-U5T1G

S-1701A3430-U5T1G

S-1701A5040-U5T1G

S-1701A5041-U5T1G

S-1701A5042-U5T1G

S-1701A5043-U5T1G

S-1701B1815-U5T1G

S-1701B2520-U5T1G

S-1701B2521-U5T1G

S-1701B2522-U5T1G

S-1701B3024-U5T1G

S-1701B3025-U5T1G

S-1701B3026-U5T1G

S-1701B3326-U5T1G

S-1701B3327-U5T1G

S-1701B3328-U5T1G

S-1701B3342-U5T1G

S-1701B3430-U5T1G

S-1701B5040-U5T1G

S-1701B5041-U5T1G

S-1701B5042-U5T1G

S-1701B5043-U5T1G

P

R

S

T

U

V

W

X

Y

Z

3

G

H

I

J

K

L

8

Y

4

M

N

O

5

6

7

Remark Please contact the SII marketing department for products with specifications other than the above.

(c) S-1701 Series C type

(d) S-1701 Series D type

Product Code

Product Name

(1)

(2)

9

(3)

(1)

(2)

V

(3)

S-1701C1815-U5T1G

S-1701C2520-U5T1G

S-1701C2521-U5T1G

S-1701C2522-U5T1G

S-1701C3024-U5T1G

S-1701C3025-U5T1G

S-1701C3026-U5T1G

S-1701C3326-U5T1G

S-1701C3327-U5T1G

S-1701C3328-U5T1G

S-1701C3430-U5T1G

S-1701C5040-U5T1G

S-1701C5041-U5T1G

S-1701C5042-U5T1G

S-1701C5043-U5T1G

P

A

B

C

D

E

F

G

H

I

S-1701D1815-U5T1G

S-1701D2520-U5T1G

S-1701D2521-U5T1G

S-1701D2522-U5T1G

S-1701D3024-U5T1G

S-1701D3025-U5T1G

S-1701D3026-U5T1G

S-1701D3326-U5T1G

S-1701D3327-U5T1G

S-1701D3328-U5T1G

S-1701D3430-U5T1G

S-1701D5040-U5T1G

S-1701D5041-U5T1G

S-1701D5042-U5T1G

S-1701D5043-U5T1G

P

A

B

C

D

E

F

G

H

I

J

K

L

O

K

L

M

N

O

M

N

Remark Please contact the SII marketing department for products with specifications other than the above.

61

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(e) S-1701 Series E type

(f) S-1701 Series F type

Product Code

(1) (2) (3)

Product Name

(1)

(2)

V

W

V

(3)

S-1701E1815-U5T1G

S-1701E2520-U5T1G

S-1701E2521-U5T1G

S-1701E2522-U5T1G

S-1701E3024-U5T1G

S-1701E3025-U5T1G

S-1701E3026-U5T1G

S-1701E3326-U5T1G

S-1701E3327-U5T1G

S-1701E3328-U5T1G

S-1701E3430-U5T1G

S-1701E5040-U5T1G

S-1701E5041-U5T1G

S-1701E5042-U5T1G

S-1701E5043-U5T1G

P

T

U

V

W

X

Y

Z

3

S-1701F1815-U5T1G

S-1701F2520-U5T1G

S-1701F2521-U5T1G

S-1701F2522-U5T1G

S-1701F3024-U5T1G

S-1701F3025-U5T1G

S-1701F3026-U5T1G

S-1701F3326-U5T1G

S-1701F3327-U5T1G

S-1701F3328-U5T1G

S-1701F3430-U5T1G

S-1701F5040-U5T1G

S-1701F5041-U5T1G

S-1701F5042-U5T1G

S-1701F5043-U5T1G

P

W

F

G

H

I

J

K

L

M

N

O

T

P

Q

R

S

4

5

A

6

7

8

9

Remark Please contact the SII marketing department for products with specifications other than the above.

(g) S-1701 Series H type

(h) S-1701 Series N type

Product Code

Product Name

(1)

(2)

A

(3)

(1)

(2)

W

(3)

S-1701H5045-U5T1G

T

A

S-1701N1515-U5T1G

S-1701N1815-U5T1G

S-1701N2515-U5T1G

S-1701N2715-U5T1G

S-1701N3015-U5T1G

S-1701N3315-U5T1G

S-1701N5015-U5T1G

P

Y

Z

3

4

5

6

7

Remark Please contact the SII marketing department for products with specifications other than the above.

(i) S-1701 Series P type

(j) S-1701 Series Q type

Product Code

Product Name

(1)

(2)

X

(3)

I

(1)

(2)

X

(3)

S-1701P1515-U5T1G

S-1701P1815-U5T1G

S-1701P2515-U5T1G

S-1701P2715-U5T1G

S-1701P3015-U5T1G

S-1701P3315-U5T1G

S-1701P5015-U5T1G

P

S-1701Q1515-U5T1G

S-1701Q1815-U5T1G

S-1701Q2515-U5T1G

S-1701Q2715-U5T1G

S-1701Q3015-U5T1G

S-1701Q3315-U5T1G

S-1701Q5015-U5T1G

P

Z

3

4

5

6

7

8

X

J

X

K

L

X

M

N

O

X

Remark Please contact the SII marketing department for products with specifications other than the above.

(k) S-1701 Series R type

(l) S-1701 Series S type

Product Code

Product Name

(1)

(2)

Y

(3)

(1)

(2)

Y

(3)

S-1701R1515-U5T1G

S-1701R1815-U5T1G

S-1701R2515-U5T1G

S-1701R2715-U5T1G

S-1701R3015-U5T1G

S-1701R3315-U5T1G

S-1701R5015-U5T1G

P

E

F

G

H

I

S-1701S1515-U5T1G

S-1701S1815-U5T1G

S-1701S2515-U5T1G

S-1701S2715-U5T1G

S-1701S3015-U5T1G

S-1701S3315-U5T1G

S-1701S5015-U5T1G

P

Q

R

S

Y

T

Y

U

V

Y

J

Y

K

Y

W

Remark Please contact the SII marketing department for products with specifications other than the above.

62

Seiko Instruments Inc.

HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION

Rev.2.4_00

S-1701 Series

(m) S-1701 Series T type

(n) S-1701 Series U type

Product Code

Product Name

(1)

(2)

Z

(3)

(1)

P

(2)

Z

(3)

R

S

T

S-1701T1515-U5T1G

S-1701T1815-U5T1G

S-1701T2515-U5T1G

S-1701T2715-U5T1G

S-1701T3015-U5T1G

S-1701T3315-U5T1G

S-1701T5015-U5T1G

P

A

B

C

D

E

F

S-1701U1815-U5T1G

S-1701U2520-U5T1G

S-1701U2521-U5T1G

S-1701U2522-U5T1G

S-1701U3024-U5T1G

S-1701U3025-U5T1G

S-1701U3026-U5T1G

S-1701U3326-U5T1G

S-1701U3327-U5T1G

S-1701U3328-U5T1G

S-1701U3430-U5T1G

S-1701U5040-U5T1G

S-1701U5041-U5T1G

S-1701U5042-U5T1G

S-1701U5043-U5T1G

Z

U

V

W

X

Y

Z

G

3

8

4

5

6

7

Remark Please contact the SII marketing department for products with specifications other than the above.

(o) S-1701 Series V type

(p) S-1701 Series W type

Product Code

Product Name

(1)

(2)

7

(3)

(1)

(2)

7

8

(3)

S-1701V1815-U5T1G

S-1701V2520-U5T1G

S-1701V2521-U5T1G

S-1701V2522-U5T1G

S-1701V3024-U5T1G

S-1701V3025-U5T1G

S-1701V3026-U5T1G

S-1701V3326-U5T1G

S-1701V3327-U5T1G

S-1701V3328-U5T1G

S-1701V3430-U5T1G

S-1701V5040-U5T1G

S-1701V5041-U5T1G

S-1701V5042-U5T1G

S-1701V5043-U5T1G

P

E

F

G

H

I

S-1701W1815-U5T1G

S-1701W2520-U5T1G

S-1701W2521-U5T1G

S-1701W2522-U5T1G

S-1701W3024-U5T1G

S-1701W3025-U5T1G

S-1701W3026-U5T1G

S-1701W3326-U5T1G

S-1701W3327-U5T1G

S-1701W3328-U5T1G

S-1701W3430-U5T1G

S-1701W5040-U5T1G

S-1701W5041-U5T1G

S-1701W5042-U5T1G

S-1701W5043-U5T1G

P

X

Y

Z

3

4

J

5

K

L

6

7

M

N

S

O

P

Q

R

8

9

E

A

B

C

D

Remark Please contact the SII marketing department for products with specifications other than the above.

(q) S-1701 Series X type

(r) S-1701 Series Y type

Product Code

Product Name

(1)

(2)

8

(3)

(1)

(2)

8

(3)

S-1701X3228-U5T1G

S-1701X3330-U5T1G

P

J

S-1701Y3228-U5T1G

S-1701Y3330-U5T1G

P

O

P

8

L

P

8

S

Remark Please contact the SII marketing department for products with specifications other than the above.

(s) S-1701 Series Z type

Product Code

Product Name

(1)

P

(2)

8

(3)

T

S-1701Z3228-U5T1G

Remark Please contact the SII marketing department for products with specifications other than the above.

63

Seiko Instruments Inc.

2.9±0.2

1.9±0.2

4

5

+0.1

-0.06

1

2

3

0.16

0.95±0.1

0.4±0.1

No. MP005-A-P-SD-1.2

TITLE

SOT235-A-PKG Dimensions

MP005-A-P-SD-1.2

No.

SCALE

UNIT

mm

Seiko Instruments Inc.

4.0±0.1(10 pitches:40.0±0.2)

+0.1

-0

2.0±0.05

0.25±0.1

ø1.5

+0.2

-0

4.0±0.1

ø1.0

1.4±0.2

3.2±0.2

3

4

2 1

5

Feed direction

No. MP005-A-C-SD-2.1

TITLE

SOT235-A-Carrier Tape

MP005-A-C-SD-2.1

No.

SCALE

UNIT

mm

Seiko Instruments Inc.

12.5max.

9.0±0.3

Enlarged drawing in the central part

ø13±0.2

(60°)

No. MP005-A-R-SD-1.1

TITLE

SOT235-A-Reel

MP005-A-R-SD-1.1

No.

SCALE

UNIT

QTY.

3,000

mm

Seiko Instruments Inc.

4.5±0.1

1.6±0.2

1.5±0.1

5

4

1

2

3

1.5±0.1 1.5±0.1

0.4±0.05

0.3

0.4±0.1

45°

0.45±0.1

No. UP005-A-P-SD-1.1

TITLE

SOT895-A-PKG Dimensions

UP005-A-P-SD-1.1

No.

SCALE

UNIT

mm

Seiko Instruments Inc.

4.0±0.1(10 pitches : 40.0±0.2)

+0.1

-0

ø1.5

2.0±0.05

+0.1

-0

0.3±0.05

2.0±0.1

8.0±0.1

ø1.5

5° max.

4.75±0.1

3

4

2

1

5

Feed direction

No. UP005-A-C-SD-1.1

TITLE

SOT895-A-Carrier Tape

UP005-A-C-SD-1.1

No.

SCALE

UNIT

mm

Seiko Instruments Inc.

16.5max.

13.0±0.3

Enlarged drawing in the central part

(60°)

No. UP005-A-R-SD-1.1

TITLE

SOT895-A-Reel

UP005-A-R-SD-1.1

No.

QTY.

SCALE

UNIT

1,000

mm

Seiko Instruments Inc.

·

The information described herein is subject to change without notice.

Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein

whose related industrial properties, patents, or other rights belong to third parties. The application circuit

examples explain typical applications of the products, and do not guarantee the success of any specific

mass-production design.

·

When the products described herein are regulated products subject to the Wassenaar Arrangement or other

agreements, they may not be exported without authorization from the appropriate governmental authority.

Use of the information described herein for other purposes and/or reproduction or copying without the

express permission of Seiko Instruments Inc. is strictly prohibited.

The products described herein cannot be used as part of any device or equipment affecting the human

body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus

installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc.

Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the

failure or malfunction of semiconductor products may occur. The user of these products should therefore

give thorough consideration to safety design, including redundancy, fire-prevention measures, and

malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.

·


型号：	S-1701W2522-U5T1G
厂家：	SEIKO INSTRUMENTS INC
描述：	HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION 带复位功能高纹波抑制率低压差CMOS电压稳压器稳压器调节器光电二极管输出元件
文件：	总70页 (文件大小：750K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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