MCP1701A-1802I/CB_技术文档

MCP1701A

2 µA Low-Dropout Positive Voltage Regulator

Features

General Description

• 2.0 µA Typical Quiescent Current

The MCP1701A is a family of CMOS low-dropout,

positive voltage regulators that can deliver up to

250 mA of current while consuming only 2.0 µA of

quiescent current (typ.). The input operating range is

specified up to 10V, making it ideal for lithium-ion (one

or two cells), 9V alkaline and other two and three

primary cell battery-powered applications.

• Input Operating Voltage Range up to 10.0V

• Low-Dropout Voltage (LDO):

- 120 mV (typical) @ 100 mA

- 380 mV (typical) @ 200 mA

• High Output Current: 250 mA (V_OUT= 5.0V)

• High-Accuracy Output Voltage: ±2% (max)

• Low Temperature Drift: ±100 ppm/°C (typical)

• Excellent Line Regulation: 0.2%/V (typical)

The MCP1701A is capable of delivering 250 mA with

an input-to-output voltage differential (dropout voltage)

of 650 mV. The low-dropout voltage extends the battery

operating lifetime. It also permits high currents in small

packages when operated with minimum V_IN– V_OUT

differentials. The MCP1701A offers improved startup

and transient response.

• Package Options: 3-Pin SOT-23A, 3-Pin SOT-89,

and 3-Pin TO-92

• Short Circuit Protection

• Standard Output Voltage Options:

- 1.8V, 2.5V, 3.0V, 3.3V, 5.0V

The MCP1701A has a tight tolerance output voltage

regulation of ±0.5% (typ.) and very good line regulation

at ±0.2%. The LDO output is stable when using only

1 µF of output capacitance of either tantalum or

aluminum-electrolytic style capacitors. The MCP1701A

LDO also incorporates short circuit protection to ensure

maximum reliability.

Applications

• Battery-Powered Devices

• Battery-Powered Alarm Circuits

• Smoke Detectors

Package options include the 3-pin SOT-23A, 3-pin

SOT-89 and 3-Pin TO-92.

• CO²Detectors

• Smart Battery Packs

• PDAs

Package Types

• Low-Quiescent Current Voltage Reference

• Cameras and Portable Video Equipment

• Pagers and Cellular Phones

• Solar-Powered Instruments

• Consumer Products

3-Pin SOT-23A

3-Pin SOT-89

V_IN

3

V_IN

MCP1701A

• Microcontroller Power

1

2

1

2

3

GND

V_OUT

GND V_INV_OUT

3-Pin TO-92

1 2 3

Bottom

View

GND V_INV_OUT

Note: 3-Pin SOT-23A is equivalent to the EIAJ

SC-59.

DS21991C-page 1

MCP1701A

Functional Block Diagram

MCP1701A

V_IN

V_OUT

Short-Circuit

Protection

+

–

Voltage

Reference

GND

Typical Application Circuits

MCP1701A

V_IN

GND

V_OUT

9V Alkaline Battery

V_OUT

3.3V

V_IN

C_IN

1 µF Tantalum

I_OUT

50 mA

C_OUT

1 µF Tantalum

DS21991C-page 2

MCP1701A

† Notice: Stresses above those listed under “Absolute

Maximum Ratings” may cause permanent damage to the

device. These are stress ratings only and functional operation

of the device at these or any other conditions above those

indicated in the operation sections of the specifications is not

implied. Exposure to Absolute Maximum Rating conditions for

extended periods may affect device reliability.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

Input Voltage ........................................................+12V

Output Current (Continuous)..........P_D/(V_IN– V_OUT)mA

Output Current (peak)..................................... 500 mA

Output Voltage ............... (GND – 0.3V) to (V_IN+ 0.3V)

Continuous Power Dissipation:

3-Pin SOT-23A ............................................150 mW

3-Pin SOT-89...............................................500 mW

3-Pin TO-92.................................................300 mW

ELECTRICAL CHARACTERISTICS

Electrical Specifications: Unless otherwise specified, all limits are established for an ambient temperature of T_A= +25°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Output Voltage Regulation

Maximum Output Current

V_OUT

V_R- 2% V_R±0.5% V_R+ 2%

I_OUT= 40 mA (Note 1)

V

I_OUTMAX

250

200

150

125

110

-1.60

-2.25

-2.72

-3.00

-3.60

-1.60

—

mA

V_OUT= 5.0V (V_IN= V_R+ 1.0V)

V_OUT= 4.0V

—

V_OUT= 3.3V

—

V_OUT= 3.0V

—

V_OUT= 2.5V

—

V_OUT= 1.8V

Load Regulation (Note 3)

ΔV_OUT/V_OUT

±0.8

±1.1

±1.3

±1.5

±1.8

±0.8

380

400

180

2.0

+1.60

+2.25

+2.72

+3.00

+3.60

+1.60

600

630

700

300

4.5

%

mV

µA

V_OUT= 5.0V, 1 mA ≤ I_OUT≤ 100 mA

V_OUT= 4.0V, 1 mA ≤ I_OUT≤ 100 mA

V_OUT= 3.3V, 1 mA ≤ I_OUT≤ 80 mA

V_OUT= 3.0V, 1 mA ≤ I_OUT≤ 80 mA

V_OUT= 2.5V, 1 mA ≤ I_OUT≤ 60 mA

V_OUT= 1.8V, 1 mA ≤ I_OUT≤ 30 mA

I_OUT= 200 mA, V_R= 5.0V

I_OUT= 200 mA, V_R= 4.0V

I_OUT= 150 mA, V_R= 3.3V

I_OUT= 150 mA, V_R= 3.0V

I_OUT= 120 mA, V_R= 2.5V

I_OUT= 20 mA, V_R= 1.8V

V_IN= V_R+ 1.0V

Dropout Voltage

V_IN- V_OUT

—

Input Quiescent Current

Line Regulation

I_Q

—

ΔV_OUT•100

ΔV_IN•V_OUT

V_IN

—

0.2

0.3

%/V I_OUT= 40 mA, (V_R+1) ≤ V_IN≤ 10.0V

Input Voltage

—

10

—

V

Temperature Coefficient of

Output Voltage

TCV_OUT

±100

ppm/ I_OUT= 40 mA, -40°C ≤ T_A≤ +85°C

°C

(Note 2)

Output Rise Time

T_R

—

200

—

µs

10% V_Rto 90% V_R, V_IN= 0V to V_R+1V,

R_L= 25Ω resistive

1: V_Ris the nominal regulator output voltage. For example: V_R= 1.8V, 2.5V, 3.3V, 4.0V, 5.0V.

The input voltage V_IN= V_R+ 1.0V, I_OUT= 40 mA.

2: TCV_OUT= (V_OUT-HIGH– V_OUT-LOW) *10⁶/ (V_R* ΔTemperature), V_OUT-HIGH= Highest voltage measured

over the temperature range. V_OUT-LOW= Lowest voltage measured over the temperature range.

3: Load regulation is measured at a constant junction temperature using low duty cycle pulse testing.

DS21991C-page 3

MCP1701A

TEMPERATURE CHARACTERISTICS

Electrical Specifications: Unless otherwise specified, T_A= +25°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Specified Temperature Range (I)

Storage Temperature Range

Package Thermal Resistances

Thermal Resistance, 3L-SOT-23A

T_A

-40

—

+85

°C

+125

θ_JA

—

335

230

—

°C/W Minimum trace width single

layer application

°C/W Typical FR4, 4-layer

application

Thermal Resistance, 3L-SOT-89

Thermal Resistance, 3L-TO-92

θ_JA

52

°C/W Typical, when mounted on 1

square inch of copper

131.9

°C/W EIA/JEDEC JESD51-751-7

4-layer board

DS21991C-page 4

MCP1701A

2.0

TYPICAL PERFORMANCE CURVES

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

Notes: Unless otherwise specified, V_OUT= 1.8V, 3.3V, 5.0V, T_A= +25°C, C_IN= 1 µF Tantalum, C_OUT= 1 µF Tantalum.

3

2.8

2.6

2.4

2.2

2

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1

V_R= 1.8V

+90°C

V_IN= 4.3V

V_R= 3.3V

+90°C

+25°C

-45°C

1.8

1.6

1.4

1.2

1

-45°C

3

5

7

9

11

0

50

100

150

200

Input Voltage (V)

Load Current (mA)

FIGURE 2-1:

Supply Current vs. Input

FIGURE 2-4:

Supply Current vs. Load

Voltage (V = 1.8V).

Current (V = 3.3V).

R

1.8

1.7

2.2

2

V_R= 3.3V

V_IN= 6.0V

V_R= 5.0V

1.6

1.5

1.4

1.3

1.2

1.1

1

+90°C

+25°C

+90°C

+25°C

1.8

1.6

1.4

1.2

1

-45°C

4

6

8

10

12

0

50

100

150

200

Input Voltage (V)

Load Current (mA)

FIGURE 2-2:

Supply Current vs. Input

FIGURE 2-5:

Supply Current vs. Load

Voltage (V = 3.3V).

Current (V = 5.0V).

R

2.4

2.2

2

V_IN= V_R+ 1.0V

I_OUT= 0 μA

V_R= 5.0V

+90°C

V_R= 5.0V

2

+25°C

1.8

1.6

1.4

1.2

1.8

1.6

V_R= 3.3V

1.4

1.2

1

-45°C

V_R= 1.8V

-45

-25

-5

15

35

55

75

95

6

7

8

9

10

11

12

Temperature (°C)

Input Voltage (V)

FIGURE 2-3:

Voltage (V = 5.0V).

Supply Current vs. Input

FIGURE 2-6:

Temperature.

Supply Current vs.

R

DS21991C-page 5

MCP1701A

Note: Unless otherwise indicated, V_OUT= 1.8V, 3.3V, 5.0V, T_A= +25°C, C_IN= 1 µF Tantalum, C_OUT= 1 µF Tantalum.

1.88

1.86

1.84

1.82

1.8

1.82

1.81

1.8

V_R= 1.8V

I_OUT= 0.1 mA

V_R= 1.8V

_IN= 3.0V

+25°C

V

1.79

1.78

1.77

1.76

1.75

1.74

1.73

1.72

1.71

+25°C

+90°C

-45°C

1.78

1.76

1.74

1.72

+90°C

-45°C

4

3

5

6

7

8

9

10 11 12

0

20

40

60

80

100

Input Voltage (V)

Load Current (mA)

FIGURE 2-7:

Output Voltage vs. Input

FIGURE 2-10:

Output Voltage vs. Load

Voltage (V = 1.8V).

Current (V = 1.8V).

R

3.4

3.38

3.36

3.33

V_R= 3.3V

V_IN= 4.3V

+90°C

3.32

I_OUT= 0.1 mA

3.31

+25°C

3.3

3.34

3.32

3.3

+90°C

+25°C

-45°C

3.29

3.28

-45°C

3.28

3.26

3.24

3.27

3.26

3.25

4

5

6

7

8

9

10

11

12

0

30

60

90

120

150

Input Voltage (V)

Load Current (mA)

FIGURE 2-8:

Output Voltage vs. Input

FIGURE 2-11:

Output Voltage vs. Load

Voltage (V = 3.3V).

Current (V = 3.3V).

R

5.12

5.1

5.04

V_R= 5.0V

+90°C

I_OUT= 0.1 mA

5.03

V_IN= 6.0V

+25°C

5.02

5.08

5.06

5.01

+90°C

5.04

+25°C

5.02

5

-45°C

4.99

4.98

4.97

-45°C

5

4.98

6

7

8

9

10

11

12

0

50

100

150

200

250

Input Voltage (V)

Load Current (mA)

FIGURE 2-9:

Output Voltage vs. Input

FIGURE 2-12:

Output Voltage vs. Load

Voltage (V = 5.0V).

Current (V = 5.0V).

R

DS21991C-page 6

MCP1701A

Note: Unless otherwise indicated, V_OUT= 1.8V, 3.3V, 5.0V, T_A= +25°C, C_IN= 1 µF Tantalum, C_OUT= 1 µF Tantalum.

0.7

V_R= 1.8V

0.6

+25°C

0.5

0.4

0.3

+90°C

-45°C

0.2

0.1

0.0

0

20

40

60

80

100

Load Current (mA)

FIGURE 2-13:

Dropout Voltage vs. Load

FIGURE 2-16:

Start-up From V

IN

Current (V = 1.8V).

(V = 1.8V).

R

0

0.50

V_R= 3.3V

0.40

0.30

0.20

0.10

0.00

+25°C

+90°C

-45°C

0

25

50

75

100

125

150

Load Current (mA)

FIGURE 2-14:

Dropout Voltage vs. Load

FIGURE 2-17:

Current (V = 3.3V).

(V = 3.3V).

R

0.6

V_R= 5.0V

0.5

0.4

0.3

0.2

0.1

0

+25°C

+90°C

-45°C

0

50

100

150

200

250

Load Current (mA)

FIGURE 2-15:

Dropout Voltage vs. Load

FIGURE 2-18:

Current (V = 5.0V).

(V = 5.0V).

R

DS21991C-page 7

MCP1701A

Note: Unless otherwise indicated, V_OUT= 1.8V, 3.3V, 5.0V, T_A= +25°C, C_IN= 1 µF Tantalum, C_OUT= 1 µF Tantalum.

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0.00

-0.05

-0.10

-0.15

-0.20

-0.25

-0.30

-0.35

-0.40

V_R= 1.8V

V_IN= 2.8V to 10V

V_R= 1.8V

_OUT= 1 to 30 mA

I_OUT= 0 mA

I_OUT= 0.1 mA

I

V_IN= 6.0V

V_IN= 3.0V

V_IN= 8.0V

I_OUT= 1.0 mA

I_OUT= 10 mA

V_IN= 10.0V

I_OUT= 100 mA

V_IN= 12.0V

-45 -30 -15

0

15 30 45 60 75 90

-45 -30 -15

0

15 30 45 60 75 90

Temperature (°C)

FIGURE 2-19:

Load Regulation vs.

FIGURE 2-22:

Line Regulation vs.

Temperature (V = 1.8V).

R

0.18

-0.35

-0.40

I_OUT= 0 mA

V_R= 3.3V

V_IN= 4.3V to 10V

V_R= 3.3V

I_OUT= 1 to 80 mA

0.16

V_IN= 4.3V

V_IN= 8.0V

I_OUT= 10 mA

I_OUT= 100 mA

-0.45

-0.50

-0.55

-0.60

-0.65

-0.70

-0.75

0.14

0.12

0.10

0.08

0.06

0.04

V_IN= 10.0V

I_OUT= 200 mA

V_IN= 12.0V

I_OUT= 300 mA

-45

-25

-5

15

35

55

75

-45 -30 -15

0

15 30 45 60 75 90

Temperature (°C)

FIGURE 2-20:

Load Regulation vs.

FIGURE 2-23:

Line Regulation vs.

Temperature (V = 3.3V).

R

0.18

-0.20

V_R= 5.0V

V_IN= 6.0V to 10V

V_R= 5.0V

_IN= 6.0V to 12V

V_IN= 6.0V

I_OUT= 0 mA

-0.25

V

0.16

0.14

0.12

0.10

0.08

0.06

-0.30

-0.35

-0.40

-0.45

I_OUT= 1 mA

I_OUT= 10 mA

V_IN= 8.0V

V_IN= 10.0V

-0.50

-0.55

-0.60

-0.65

I_OUT= 100 mA

V_IN= 12.0V

I_OUT= 200 mA

I_OUT= 300 mA

-45

-25

-5

15

35

55

75

-45 -30 -15

0

15 30 45 60 75 90

Temperature (°C)

FIGURE 2-21:

Load Regulation vs.

FIGURE 2-24:

Line Regulation vs.

Temperature (V = 5.0V).

R

DS21991C-page 8

MCP1701A

3.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 3-1.

TABLE 3-1:

PIN FUNCTION TABLE

Pin No.

SOT-23A

Pin No.

SOT-89

Pin No.

TO-92

Name

Function

1

2

3

1

3

2

1

3

2

GND

V_OUT

V_IN

Ground Terminal

Regulated Voltage Output

Unregulated Supply Input

3.1

Ground Terminal (GND)

3.3

Unregulated Supply Input (V_IN)

Regulator ground. Tie GND to the negative side of the

output and the negative side of the input capacitor.

Only the LDO bias current (2 µA, typ.) flows out of this

pin, there is no high current. The LDO output regulation

is referenced to this pin. Minimize voltage drops

between this pin and the negative side of the load.

Connect the input supply voltage and the positive side

of the input capacitor to V_IN. Like all low-dropout linear

regulators, low source impedance is necessary for the

stable operation of the LDO. The amount of

capacitance required to ensure low source impedance

will depend on the proximity of the input source

capacitors or battery type. The input capacitor should

be physically located as close as possible to the V_IN

pin. For most applications, 1 µF of capacitance will

ensure stable operation of the LDO circuit. For

applications that have load currents below 100 mA, the

input capacitance requirement can be lowered. The

type of capacitor used can be ceramic, tantalum or

aluminum electrolytic. The low equivalent series

resistance characteristics of the ceramic will yield

better noise and PSRR performance at high frequency.

The current flow into this pin is equal to the DC load

current, plus the LDO bias current (2 µA, typical).

3.2

Regulated Voltage Output (V_OUT)

Connect V_OUTto the positive side of the load and the

positive terminal of the output capacitor. The positive

side of the output capacitor should be physically

located as close as possible to the LDO V_OUTpin. The

current flowing out of this pin is equal to the DC load

current.

DS21991C-page 9

MCP1701A

4.2

Input Capacitor

4.0

DETAILED DESCRIPTION

A 1 µF input capacitor is recommended for most

applications when the input impedance is on the order

of 10Ω. Larger input capacitance may be required for

stability when operating from a battery input, or if there

is a large distance from the input source to the LDO.

When large values of output capacitance are used, the

input capacitance should be increased to prevent high

source impedance oscillations.

The MCP1701A is a low-quiescent current, precision,

fixed-output voltage LDO. Unlike bipolar regulators,

the MCP1701A supply current does not increase

proportionally with load current.

4.1

Output Capacitor

A minimum of 1 µF output capacitor is required. The

output capacitor should have an ESR greater than

0.1Ω and less than 5Ω, plus a resonant frequency

above 1 MHz. Larger output capacitors can be used to

improve supply noise rejection and transient response.

Care should be taken when increasing C_OUTto ensure

that the input impedance is not high enough to cause

high input impedance oscillation.

4.3

Overcurrent

The MCP1701 internal circuitry monitors the amount of

current flowing through the P-channel pass transistor.

In the event of a short circuit or excessive output

current, the MCP1701 will act to limit the output current.

V_IN

V_OUT

Short Circuit

Protection

+

–

Voltage

Reference

GND

FIGURE 4-1:

MCP1701A Block Diagram.

DS21991C-page 10

MCP1701A

To determine the junction temperature of the device, the

thermal resistance from junction-to-ambient must be

known. The 3-pin SOT-23A thermal resistance from

junction-to-air (R_θJA) is estimated to be approximately

335°C/W. The SOT-89 R_θJAis estimated to be

approximately 52°C/W when mounted on 1 square inch

of copper. The R_θJAwill vary with physical layout, airflow

and other application-specific conditions.

5.0

5.1

THERMAL CONSIDERATIONS

Power Dissipation

The amount of power dissipated internal to the LDO

linear regulator is the sum of the power dissipation

within the linear pass device (P-channel MOSFET) and

the quiescent current required to bias the internal

reference and error amplifier. The internal linear pass

device power dissipation is calculated as shown in

Equation 5-1.

The device junction temperature is determined by

calculating the junction temperature rise above

ambient, then adding the rise to the ambient

temperature.

EQUATION 5-1:

P_D(Pass Device) = (V_IN– V_OUT) x I_OUT

EQUATION 5-5: JUNCTION TEMPERATURE

– SOT-23A EXAMPLE:

The internal power dissipation, as a result of the bias

current for the LDO internal reference and error

amplifier, is calculated as shown in Equation 5-2.

T_J= P_DMAX× R_θJA+ T_A

T_J= 116.0 milliwatts× 335°C/W + 55°C

T_J= 93.9°C

EQUATION 5-2:

P_D(Bias) = V_INx I_GND

EQUATION 5-6: JUNCTION TEMPERATURE

– SOT-89 EXAMPLE:

The total internal power dissipation is the sum of P_D

(pass device) and P_D(bias).

T_J= 116.0 milliwatts× 52°C/W + 55°C

T_J= 61°C

EQUATION 5-3:

P_TOTAL= P_D(Pass Device) + P_D(Bias)

For the MCP1701A, the internal quiescent bias current

is so low (2 µA, typ.) that the P_D(bias) term of the

power dissipation equation can be ignored. The

maximum power dissipation can be estimated by using

the maximum input voltage and the minimum output

voltage to obtain a maximum voltage differential

between input and output. The next step would be to

multiply the maximum voltage differential by the

maximum output current.

EQUATION 5-4:

P_D= (V_INMAX– V_OUTMIN) x I_OUTMAX

Given:

V_IN

V_OUT

I_OUT

=

3.3V to 4.1V

3.0V ± 2%

1 mA to 100 mA

55°C

T_AMAX

P_MAX

(4.1V – (3.0V x 0.98)) x 100 mA

DS21991C-page 11

MCP1701A

6.0

6.1

PACKAGING INFORMATION

Package Marking Information

3-Pin TO-92

3-Pin SOT-23A

3-Pin SOT-89

1

2

1 2 3 4

5 6 7 8

9 10 1112

Line 1

Line 2

1

2

3

4

3

4

3 &

1 , 2 ,

= 701A (fixed)

1

represents first voltage digit

1V, 2V, 3V, 4V, 5V, 6V

5

represents first voltage digit (1-6)

3

Ex: 3.xV =

6 represents first voltage decimal (0-9)

7 represents extra feature code: fixed: 0

2 represents first decimal place voltage (x.0 - x.9)

3

E

Ex: 3.4V =

Symbol

Voltage

Symbol

Voltage

8 represents regulation accuracy

2 = ±2.0% (standard)

A

B

C

D

E

x.0

x.1

x.2

x.3

x.4

F

H

K

L

x.5

x.6

x.7

x.8

x.9

9 , 10, 11 & 12

represents assembly lot number

M

3

4

represents polarity

0 = Positive (fixed)

represents assembly lot number

DS21991C-page 12

MCP1701A

3-Lead Plastic Small Outline Transistor (CB) [SOT-23A]

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

D

e1

e

2

1

E

E1

N

b

c

A

φ

A2

L

A1

Units

MILLIMETERS

Dimension Limits

MIN

NOM

MAX

Number of Pins

Lead Pitch

N

e

3

0.95 BSC

Outside Lead Pitch

Overall Height

e1

A

1.90 BSC

0.89

0.90

0.00

2.10

1.20

2.70

0.15

0°

–

1.45

1.30

0.15

3.00

1.80

3.10

0.60

30°

Molded Package Thickness

Standoff

A2

A1

E

Overall Width

Molded Package Width

Overall Length

Foot Length

E1

D

L

Foot Angle

φ

c

Lead Thickness

Lead Width

0.09

0.30

0.26

0.51

b

Notes:

1. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.127 mm per side.

2. Dimensioning and tolerancing per ASME Y14.5M.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

Microchip Technology Drawing C04-130B

DS21991C-page 13

MCP1701A

3-Lead Plastic Small Outline Transistor Header (MB) [SOT-89]

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

D

D1

E

H

L

N

1

2

b

b1

e

E1

e1

A

C

Units

MILLIMETERS

Dimension Limits

MIN

MAX

Number of Leads

Pitch

N

e

3

1.50 BSC

3.00 BSC

Outside Lead Pitch

Overall Height

Overall Width

e1

A

1.40

3.94

2.29

2.13

4.39

1.40

0.79

0.35

0.41

0.36

1.60

4.25

2.60

2.29

4.60

1.83

1.20

0.44

0.56

0.48

H

Molded Package Width at Base

Molded Package Width at Top

Overall Length

E

E1

D

Tab Length

D1

L

Foot Length

Lead Thickness

c

Lead 2 Width

b

Leads 1 & 3 Width

b1

Notes:

1. Dimensions D and E do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.127 mm per side.

2. Dimensioning and tolerancing per ASME Y14.5M.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

Microchip Technology Drawing C04-029B

DS21991C-page 14

MCP1701A

3-Lead Plastic Transistor Outline (TO) [TO-92]

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

E

A

N

1

L

1

2

3

b

e

c

D

R

Units

INCHES

Dimension Limits

MIN

MAX

Number of Pins

Pitch

N

e

3

.050 BSC

Bottom to Package Flat

Overall Width

Overall Length

D

E

A

R

L

.125

.175

.170

.080

.500

.014

.165

.205

.210

.105

–

Molded Package Radius

Tip to Seating Plane

Lead Thickness

c

.021

.022

Lead Width

b

Notes:

1. Dimensions A and E do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" per side.

2. Dimensioning and tolerancing per ASME Y14.5M.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

Microchip Technology Drawing C04-101B

DS21991C-page 15

MCP1701A

NOTES:

DS21991C-page 16

MCP1701A

APPENDIX A: REVISION HISTORY

Revisions C (February 2007)

• Updated Packaging Information

Revision B (September 2006)

• Numerous changes to Section 1.0. Electrical

Characteristics

• Added disclaimer to package outline drawings.

Revision A (February 2006)

• Original Release of this Document.

DS21991C-page 17

MCP1701A

NOTES:

DS21991C-page 18

MCP1701A

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.

Examples:

PART NO.

Device

X-

XX

X

/XX

a)

b)

c)

d)

e)

f)

MCP1701AT-1802I/CB: 1.8V LDO Positive

Voltage Regulator,

Tape

and Reel Voltage

Output Feature Tolerance Temp. Package

Code

SOT-23A-3 pkg.

MCP1701AT-1802I/MB: 1.8V LDO Positive

Voltage Regulator,

Device:

MCP1701A: 2 µA Low-Dropout Positive Voltage Regulator

SOT89-3 pkg.

MCP1701A-1802I/TO: 1.8V LDO Positive

Voltage Regulator,

Tape and Reel:

Output Voltage:

T

=

Tape and Reel

TO-92 pkg.

MCP1701AT-2502I/CB: 2.5V LDO Positive

Voltage Regulator,

18

25

30

33

50

=

1.8V “Standard”

2.5V “Standard”

3.0V “Standard”

3.3V “Standard”

5.0V “Standard”

SOT-23A-3 pkg.

MCP1701A-2502I/TO: 2.5V LDO Positive

Voltage Regulator,

*Contact factory for other output voltage options.

TO-92 pkg.

MCP1701AT-3002I/CB: 3.0V LDO Positive

Voltage Regulator,

Extra Feature Code:

Tolerance:

0

2

I

=

Fixed

SOT-23A-3 pkg.

2.0% (Standard)

-40°C to +85°C

g)

h)

i)

MCP1701AT-3002I/MB: 3.0V LDO Positive

Voltage Regulator,

SOT89-3 pkg.

Temperature:

MCP1701A-3002I/TO: 3.0V LDO Positive

Voltage Regulator,

Package Type:

CB

MB

TO

=

3-Pin SOT-23A (equivalent to EIAJ SC-59)

3-Pin SOT-89

3-Pin TO-92

TO-92 pkg.

MCP1701AT-3302I/CB: 3.3V LDO Positive

Voltage Regulator,

SOT-23A-3 pkg.

j)

MCP1701AT-3302I/MB: 3.3V LDO Positive

Voltage Regulator,

SOT89-3 pkg.

k)

l)

MCP1701AT-5002I/CB: 5.0V LDO Positive

Voltage Regulator,

SOT-23A-3 pkg.

MCP1701AT-5002I/MB: 5.0V LDO Positive

Voltage Regulator,

SOT89-3 pkg.

m) MCP1701A-5002I/TO: 5.0V LDO Positive

Voltage Regulator,

TO-92 pkg.

DS21991C-page 19

MCP1701A

NOTES:

DS21991C-page 20

Note the following details of the code protection feature on Microchip devices:

•

Microchip products meet the specification contained in their particular Microchip Data Sheet.

•

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

•

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

•

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,

dsPIC, KEELOQ, KEELOQ logo, microID, MPLAB, PIC,

PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and

SmartShunt are registered trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.

AmpLab, FilterLab, Linear Active Thermistor, Migratable

Memory, MXDEV, MXLAB, PS logo, SEEVAL, SmartSensor

and The Embedded Control Solutions Company are

registered trademarks of Microchip Technology Incorporated

in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard,

dsPICDEM, dsPICDEM.net, dsPICworks, ECAN,

ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,

In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi,

MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit,

PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal,

PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB,

rfPICDEM, Select Mode, Smart Serial, SmartTel, Total

Endurance, UNI/O, WiperLock and ZENA are trademarks of

Microchip Technology Incorporated in the U.S.A. and other

countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona, Gresham, Oregon and Mountain View, California. The

Company’s quality system processes and procedures are for its PIC^®

MCUs and dsPIC^®DSCs, KEELOQ^®code hopping devices, Serial

EEPROMs, microperipherals, nonvolatile memory and analog

products. In addition, Microchip’s quality system for the design and

manufacture of development systems is ISO 9001:2000 certified.

DS21991C-page 21

WORLDWIDE SALES AND SERVICE

AMERICAS

ASIA/PACIFIC

EUROPE

Corporate Office

Asia Pacific Office

Suites 3707-14, 37th Floor

Tower 6, The Gateway

Habour City, Kowloon

Hong Kong

Tel: 852-2401-1200

Fax: 852-2401-3431

India - Bangalore

Tel: 91-80-4182-8400

Fax: 91-80-4182-8422

Austria - Wels

Tel: 43-7242-2244-39

Fax: 43-7242-2244-393

2355 West Chandler Blvd.

Chandler, AZ 85224-6199

Tel: 480-792-7200

Fax: 480-792-7277

Technical Support:

http://support.microchip.com

Web Address:

www.microchip.com

Denmark - Copenhagen

Tel: 45-4450-2828

Fax: 45-4485-2829

India - New Delhi

Tel: 91-11-4160-8631

Fax: 91-11-4160-8632

France - Paris

Tel: 33-1-69-53-63-20

Fax: 33-1-69-30-90-79

India - Pune

Tel: 91-20-2566-1512

Fax: 91-20-2566-1513

Australia - Sydney

Tel: 61-2-9868-6733

Fax: 61-2-9868-6755

Atlanta

Duluth, GA

Tel: 678-957-9614

Fax: 678-957-1455

Germany - Munich

Tel: 49-89-627-144-0

Fax: 49-89-627-144-44

Japan - Yokohama

Tel: 81-45-471- 6166

Fax: 81-45-471-6122

China - Beijing

Tel: 86-10-8528-2100

Fax: 86-10-8528-2104

Italy - Milan

Tel: 39-0331-742611

Fax: 39-0331-466781

Korea - Gumi

Tel: 82-54-473-4301

Fax: 82-54-473-4302

Boston

China - Chengdu

Tel: 86-28-8665-5511

Fax: 86-28-8665-7889

Westborough, MA

Tel: 774-760-0087

Fax: 774-760-0088

Netherlands - Drunen

Tel: 31-416-690399

Fax: 31-416-690340

Korea - Seoul

China - Fuzhou

Tel: 86-591-8750-3506

Fax: 86-591-8750-3521

Tel: 82-2-554-7200

Fax: 82-2-558-5932 or

82-2-558-5934

Chicago

Itasca, IL

Tel: 630-285-0071

Fax: 630-285-0075

Spain - Madrid

Tel: 34-91-708-08-90

Fax: 34-91-708-08-91

China - Hong Kong SAR

Tel: 852-2401-1200

Fax: 852-2401-3431

Malaysia - Penang

Tel: 60-4-646-8870

Fax: 60-4-646-5086

Dallas

Addison, TX

Tel: 972-818-7423

Fax: 972-818-2924

UK - Wokingham

Tel: 44-118-921-5869

Fax: 44-118-921-5820

China - Qingdao

Tel: 86-532-8502-7355

Fax: 86-532-8502-7205

Philippines - Manila

Tel: 63-2-634-9065

Fax: 63-2-634-9069

Detroit

Farmington Hills, MI

Tel: 248-538-2250

Fax: 248-538-2260

China - Shanghai

Tel: 86-21-5407-5533

Fax: 86-21-5407-5066

Singapore

Tel: 65-6334-8870

Fax: 65-6334-8850

Kokomo

Kokomo, IN

Tel: 765-864-8360

Fax: 765-864-8387

China - Shenyang

Tel: 86-24-2334-2829

Fax: 86-24-2334-2393

Taiwan - Hsin Chu

Tel: 886-3-572-9526

Fax: 886-3-572-6459

China - Shenzhen

Tel: 86-755-8203-2660

Fax: 86-755-8203-1760

Taiwan - Kaohsiung

Tel: 886-7-536-4818

Fax: 886-7-536-4803

Los Angeles

Mission Viejo, CA

Tel: 949-462-9523

Fax: 949-462-9608

China - Shunde

Tel: 86-757-2839-5507

Fax: 86-757-2839-5571

Taiwan - Taipei

Tel: 886-2-2500-6610

Fax: 886-2-2508-0102

Santa Clara

Santa Clara, CA

Tel: 408-961-6444

Fax: 408-961-6445

China - Wuhan

Tel: 86-27-5980-5300

Fax: 86-27-5980-5118

Thailand - Bangkok

Tel: 66-2-694-1351

Fax: 66-2-694-1350

Toronto

Mississauga, Ontario,

Canada

Tel: 905-673-0699

Fax: 905-673-6509

China - Xian

Tel: 86-29-8833-7250

Fax: 86-29-8833-7256

12/08/06

DS21991C-page 22


型号：	MCP1701A-1802I/CB
厂家：	MICROCHIP
描述：	2レA Low-Dropout Positive Voltage Regulator 2レ低压差正电压稳压器稳压器
文件：	总22页 (文件大小：593K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MCP1701A-1802I/CB [MICROCHIP]

相关型号：

MCP1701A-1802I/MB

MCP1701A-1802I/TO

MCP1701A-2502I/CB

MCP1701A-2502I/MB

MCP1701A-2502I/TO

MCP1701A-3002I/CB

MCP1701A-3002I/MB

MCP1701A-3002I/TO

MCP1701A-3302I/CB

MCP1701A-3302I/MB

MCP1701A-3302I/TO

MCP1701A-5002I/CB