GS1117CT [VISHAY]

800mA Low Dropout Positive Adjustable Regulator; 800毫安低压差正可调稳压器


型号：	GS1117CT
厂家：	VISHAY
描述：	800mA Low Dropout Positive Adjustable Regulator 800毫安低压差正可调稳压器线性稳压器IC 调节器电源电路输出元件局域网
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GS1117

New Product

Vishay Semiconductors

formerly General Semiconductor

800mA Low Dropout

Positive Adjustable Regulator

SOT-223

TO-252

(DPak)

TO-220AB

TO-263AB

(D²Pak)

GS1117CST

GS1117CE

GS1117CT

GS1117CM

Pin Definition

Description

1. Adjust/Gnd.

2. V_{out (tab)}

3. V_in

The GS1117 is a low dropout three terminal regulator with

800mA output current capability. The output voltage is

adjustable with the use of a resistor divider. For fixed out-

put voltage versions, the output voltage is internally set at

2.5V, 2.85V, 3.3V or 5V. Dropout is guaranteed at a maxi-

mum of 1.4V at maximum output current. Its low dropout

voltage and fast transient response make it ideal for low

voltage microprocessor applications. Internal thermal limiting

provides protection against any overload condition that

would create excessive junction temperatures.

Features

• Dropout Voltage 1.2V at 800mA Output Current

• Fast Transient Response

• Line Regulation typically at 0.015%

• Load Regulation typically at 0.1%

• Internal thermal limiting

Applications

• SCSI-2 Active Terminator

• Post Regulator for Switching Supply

• Battery Chargers

• Adjustable Output Voltage or Fixed 2.5V, 2.85V, 3.3V, 5V

• Standard 3-Pin Power Packages

• Constant-Current Regulators

• PC Add-On Card

Functional Block Diagram

V_IN

Mechanical Data

Case: TO-220AB, TO-263AB (D²PAK),

TO-252 (DPAK) and SOT-223

Current

Amp

V_REF

1.25V

High temperature soldering guaranteed:

260°C/10 seconds at terminals

Thermal

Limit

Current

Limit

55µA

V_OUT

Case outlines are on the back page

For

fixed

voltage

device

ADJ

GND

Document Number 74802

20-Feb-02

www.vishay.com

GS1117

Vishay Semiconductors

formerly General Semiconductor

Maximum Ratings and Thermal Characteristics (T_A= 25°C unless otherwise noted)

Parameter

Symbol

Value

Unit

Vin Pin to ADJ/GND Pin

Thermal Resistance – Junction to Case

Vin

TO-220AB

TO-252

3.0

8.0

R_θJC

°C/W

TO-263AB

SOT-223

3.0

15.0

Operating Junction Temperature Range

Storage Temperature Range

T_J

0 to +125

°C

T_stg

–65 to 150

(2)

Electrical Characteristics⁽¹⁾T_J= 25°C , V_IN= 5V, I_o= 10mA unless otherwise noted.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

T_J= 25°C

1.238 1.250 1.262

1.225 1.250 1.275

0°C ≤ T_J≤ 125°C

2.65V ≤ V_IN≤ 7V

10mA ≤ I_o≤ 800mA

Reference Voltage

V_REF

GS1117-2.5, V_IN= 5V

GS1117-2.85, V_IN= 5V

GS1117-3.3, V_IN= 5V

GS1117-5, V_IN= 7V

GS1117

2.48

2.82

3.26

4.95

0.98V_N

2.5

2.85

3.30

5.00

V_N

2.53

2.88

3.33

5.05

1.02V_N

Output Voltage

V_OUT

0°C ≤ T_J≤ 125°C

2.65V ≤ V_IN≤ 7V

10mA ≤ I_o≤ 800mA

2.65V ≤ V_IN≤ 7V

T_J= 25°C

0°C ≤ T_J≤ 125°C

Line Regulation

Load Regulation

REG_line

REG_load

0.015

0.02

0.2

% V_O

10mA ≤ I_o≤ 800mA

T_J= 25°C

0°C ≤ T_J≤ 125°C

0.1

0.2

0.3

0.4

% V_O

0°C ≤ T_J≤ 125°C

I_o= 800mA

1.2

1.19

1.15

1.4

1.35

1.30

Dropout Voltage

V_DROP

I_o= 500mA

I_o= 100mA

Notes:

(1) All parameters, except nominal output voltage are specified for the variable voltage version, allowing a wider V_inRange.

The specified limits also apply for the fixed voltage versions over the allowable input voltage range: GS1117-2.5 (3.9V -7.0V), GS1117-2.85 (4.25V - 7.0V),

GS1117 - 3.3 (4.75V - 7.0V), GS1117-5 (6.4V - 7.0V).

(2) To maintain the specified junction temperatures, low duty cycle pulse testing is required for most parameters.

www.vishay.com

Document Number 74802

20-Feb-02

GS1117

Vishay Semiconductors

formerly General Semiconductor

(2)

Electrical Characteristics⁽¹⁾T_J= 25°C , V_IN= 5V, I_o= 10mA unless otherwise noted.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output Current

I_o

0°C ≤ T_J≤ 125°C

0.85

2.65 ≤ Vin ≤ 7V

10mA ≤ I_o≤ 800mA

0°C ≤ T_J≤ 125°C

Adjust Pin Current

I_adj

120

µA

2.65 ≤ Vin ≤ 7V

10mA ≤ I_o≤ 800mA

0°C ≤ T_J≤ 125°C

Adjust Pin Current Change

Temperature Stability

∆I_adj

0.2

I_o= 0.5A

0°C ≤ T_J≤ 125°C

T_S

0.8

%V_O

Minimum Load Current

Adjustable Version

I_LMIN

0°C ≤ T_J≤ 125°C

Quiescent Current

Fixed Voltage Version

I_Q

0°C ≤ T_J≤ 125°C

10H_Z≤ f ≤ 10 kH_Z

0.003

%V_O

RMS Output Noise

f = 120 H_Z, C_O= 25µF

C_adj= 25µF

Ripple Rejection Ratio

R_TH

Thermal Regulation

Long Term Stability

T_A= 25°C, 30ms Pulse

T_A= 125°C, 1000 Hrs

0.02

0.3

0.05

%/W

%V_O

Notes:

(1) All parameters, except nominal output voltage are specified for the variable voltage version, allowing a wider V_inRange.

The specified limits also apply for the fixed voltage versions.

(2) To maintain the specified junction temperatures, low duty cycle pulse testing is required for most parameters.

Typical Application Circuit

V_IN

V_OUT

3.3V

V_IN

GS1117-2.5

GS1117-2.85

GS1117-3.3

GS1117-5

GS1117

ADJ

V_OUT

125Ω

V_REF

10µF

205Ω

Adjustable Voltage Regulator

Fixed Voltage Regulator

Notes:

_REF= V_OUT– V_ADJ= 1.25V (typ.)

_OUT= V_REFx (1+R2/R1) + I_ADJx R2

I_ADJ= 55µA (typ.)

(1) C1 needed if device is far away from filter capacitors

(2) C2 required for stability

Document Number 74802

20-Feb-02

www.vishay.com

GS1117

Vishay Semiconductors

formerly General Semiconductor

Ratings and

Characteristic Curves (T_A= 25°C unless otherwise noted)

Fig. 2 – Dropout Voltage v.s.

Temperature

Fig. 1 – Dropout Voltage

1.30

1.25

1.20

1.15

1.10

1.05

1.6

I_OUT= 800mA

1.4

T_J= 0°C

1.2

1.0

0.8

0.6

0.4

0.2

0.0

T_J= 50°C

T_J= 125°C

200

400

600

800

1000

100

120

140

Output Current (mA)

Ambient Temperature (°C)

Fig. 3 – Minimum Load Current

(Adjustable Version)

Fig. 4 – Adjust Pin Current

100

T_J= 125°C

T_J= 25°C

T_J= 0°C

--50

--25

100

125

Temperature (°C)

Input / Output Differential Voltage (V)

Fig. 6 – Ripple Rejection

(with C 25µF)

Fig. 5 – Temperature Stability

adj

1.6

1.2

I_OUT= 0.5A

C_OUT= 25µF

0.8

C_OUT= 10µF

C_OUT= 25µF

0.4

0.0

--0.4

--0.8

--1.2

--1.6

C_OUT= 10µF

100

10K

100K

--20

80 100 120 140

Frequency (Hz)

Temperature (°C)

www.vishay.com

Document Number 74802

20-Feb-02

GS1117

Vishay Semiconductors

formerly General Semiconductor

Ratings and

Characteristic Curves ^(T_A= 25°C unless otherwise noted)

Fig. 7 – Load Transient Response

Fig. 8 – Line Transient Response

0.1

0.05

V_IN= 5V

C_IN= 1µF

C_OUT= 10µF (Tantalum)

V_OUT= 3.3V

--0.05

--0.1

--50

--100

C_OUT= 10µF (Tantalum)

V_OUT= 3.3V

0.4A

0.1A

7.0

6.0

120

160

200

Time (µs)

Ordering Information

GS1117Cxx-xxx

Output Voltage

Default: Adj.

2.5: 2.5V

2.85: 2.85V

3.3: 3.3V

5: 5.0V

Package Type

ST: SOT-223

T: TO-220

M: TO-263

E: TO-252

Document Number 74802

20-Feb-02

www.vishay.com

GS1117

Vishay Semiconductors

formerly General Semiconductor

Case Outlines

SOT-223

TO-252 (DPAK)

6.73

6.35

2.38

2.19

6.80

6.30

3.15

2.90

0.58

0.46

5.46

5.21

Top View

7.30

6.70

3.70

3.30

5.59

5.33

10.42

9.40

0.80

0.60

0.88

0.64

0.51 (min.)

1.80

Max.

2.28 (TYP.)

0.35

0.24

0.91

Min.

1.27

1.02

0.12

0.02

2.30

Typ.

13° ±3°

Dimensions in millimeters

TO-263

TO-220

4.82

3.56

1.39

0.51

4.08

3.54

10.66

9.66

4.83

4.06

10.29

9.65

1.40

3.42

2.54

1.14

6.85

5.85

16.51

14.23

1.40 (max.)

9.66

8.63

15.88

14.60

2.80

2.28

1.40

1.14

6.35 Max.

14.73

12.70

1.00

0.50

0.7 (max.)

2.54 (TYP.)

(with plating)

1.14

2.79

2.29

1.77

1.15

0.31

2.92

2.04

1.01

0.38

(with plating)

www.vishay.com

Document Number 74802

20-Feb-02

GS1117CT [VISHAY]

相关型号：

GS1117CT-1.8/45H

GS1117CT-2.5

GS1117CT-2.5/45H

GS1117CT-2.85

GS1117CT-3.3

GS1117CT-3.3/45H

GS1117CT-5

GS1117CT-5/45H

GS1117CT/45H

GS1140-1

GS1140-2

GS1140-3