GS1084CM3.3-HE3 [VISHAY]

IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1.4 V DROPOUT, PSSO2, TO-263AB, D2PAK-3, Fixed Positive Single Output LDO Regulator;


型号：	GS1084CM3.3-HE3
厂家：	VISHAY
描述：	IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1.4 V DROPOUT, PSSO2, TO-263AB, D2PAK-3, Fixed Positive Single Output LDO Regulator
文件：	总6页 (文件大小：58K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

GS1084

New Product

Vishay

formerly General Semiconductor

5A Low Dropout Positive Adjustable Regulator

TO-252

(DPak)

TO-220AB

TO-263AB

(D²Pak)

GS1084CE

GS1084CT

GS1084CM

Pin Definition

1. Adjust/Gnd.

2. V_{out (tab)}

3. V_in

Description

The GS1084 is a low dropout three terminal regulator with

5A output current capability. The output voltage is

adjustable with the use of a resistor divider. For fixed output

voltage versions, the output voltage is internally set at

1.8V, 2.5V, or 3.3V. Dropout is guaranteed at a maximum

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

and fast transient response make it ideal for low voltage

microprocessor applications. Internal current and thermal

limiting provides protection against any overload condition

that would create excessive junction temperatures.

Features

• Dropout Voltage 1.3V at 5A Output Current

• Fast Transient Response

• Line Regulation typically at 0.015%

• Load Regulation typically at 0.1%

• Internal thermal and current limiting

• Adjustable Output Voltage or Fixed 1.8V, 2.5V, 3.3V

• Standard 3-Pin Power Packages

Applications

• Post Regulator for Switching Supply

• Microprocessor Power Supplies

• Constant-Current Regulators

• Motherboard I/O Power Supplies

Functional Block Diagram

Mechanical Data

Case: TO-220AB, TO-263AB (D²PAK),

V_IN

TO-252 (DPAK)

Current

Amp

High temperature soldering guaranteed:

V_REF

1.25V

260°C/10 seconds at terminals

Thermal

Limit

Current

Limit

55µA

Case outlines are on the back page

V_OUT

For

fixed

voltage

device

ADJ

GND

Document Number 74800

26-Mar-02

www.vishay.com

GS1084

Vishay

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

Vin

Thermal Resistance –

Junction to Case

TO-220AB

TO-252

TO-263AB

3.0

8.0

3.0

R_θJC

°C/W

Operating Junction Temperature Range

Storage Temperature Range

T_J

0 to +125

°C

T_stg

–65 to 150

°C

(1)

(2)

Electrical Characteristics 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≤ 5A

Reference Voltage

V_REF

GS1084-1.8

V_IN= 5V

_IN= 5V

V_IN= 7V

1.78

2.47

3.26

1.8

2.5

3.3

V_N

1.82

2.53

3.33

GS1084-2.5

GS1084-3.3

GS1084

Output Voltage

V_OUT

0.98V_N

1.02V_N

0°C ≤ T_J≤ 125°C

2.65V ≤ V_IN≤ 7V

10mA ≤ I_o≤ 5A

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

0.035

0.2

% V_O

10mA ≤ I_o≤ 5A

T_J= 25°C

0°C ≤ T_J≤ 125°C

0.1

0.2

0.3

0.4

0°C ≤ T_J≤ 125°C

I_o= 5A

1.3

1.23

1.15

1.4

1.32

1.25

Dropout Voltage

V_DROP

I_o= 3A

I_o= 1A

Output Current

I_o

0°C ≤ T_J≤ 125°C

5.0

–

6.0

–

2.65 ≤ Vin ≤ 7V

10mA ≤ I_o≤ 5A

0°C ≤ T_J≤ 125°C

Adjust Pin Current

I_adj

120

µA

2.65 ≤ Vin ≤ 7V

10mA ≤ I_o≤ 5A

0°C ≤ T_J≤ 125°C

Adjust Pin Current Change

∆I_adj

–

0.2

µA

Temperature Stability

T_S

I_o= 0.5A, 0°C ≤ T_J≤ 125°C

0°C ≤ T_J≤ 125°C

–

0.8

–

%V_O

Min. Load Current Adjustable Version

I_LMIN

www.vishay.com

Document Number 74800

26-Mar-02

GS1084

Vishay

formerly General Semiconductor

(2)

Electrical Characteristics^(con’t.)⁽¹⁾T_J= 25°C , V_IN= 5V, I_o= 10mA unless otherwise noted.

Parameter

Symbol

Test Conditions

0°C ≤ T_J≤ 125°C

10H_Z≤ f ≤ 10 kH_Z

Min

Typ

Max

–

Unit

Quiescent Current

Fixed Voltage Version

I_Q

–

RMS Output Noise

–

0.003

%V_O

f = 120 H_Z, C_O= 25µF

C_adj= 25µF

Ripple Rejection Ratio

–

Thermal Regulation

Long Term Stability

R_TH

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 over the allowable input voltage range: GS1084-1.8 (3.2V - 7.0V), GS1084-2.5 (3.9V - 7.0V),

GS1084-3.3 (4.75V - 7.0V).

(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

Six1084-1.8

Six1084-2.5

Six1084-3.3

Six1084

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 74800

26-Mar-02

www.vishay.com

GS1084

Vishay

formerly General Semiconductor

Ratings and

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

Fig. 1 – Dropout Voltage

Fig. 2 – Load Regulation

vs.Temperature

vs. Output Current

2.0

0.10

0.05

I_OUT= 5A

1.6

T_J= 25°C

1.2

--0.05

--0.10

--0.15

--0.20

T_J= 125°C

0.8

0.4

100

120

Output Current (A)

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

C_OUT= 25µF

= 0.5A

out

1.2

0.8

C_OUT= 10µF

C_OUT= 25µF

0.4

0.0

--0.4

--0.8

C_OUT= 10µF

--1.2

--1.6

100

10K

100K

--20

100

120 140

Frequency (Hz)

Temperature (°C)

www.vishay.com

Document Number 74800

26-Mar-02

GS1084

Vishay

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

2.5A

0.1A

7.0

6.0

120

160

200

Time (µs)

Ordering Information

GS1084Cxx xxx

Output Voltage

Default: Adj.

1.8: 1.8V

2.5: 2.5V

3.3: 3.3V

Package Type

T: TO-220

M: TO-263

E: TO-252

Document Number 74800

26-Mar-02

www.vishay.com

GS1084

Vishay

formerly General Semiconductor

Case Outlines

TO-252 (DPAK)

TO-220 Case Outline

4.82

3.56

4.08

3.54

10.66

9.66

1.39

0.51

6.73

6.35

2.38

2.19

3.42

2.54

0.58

0.46

5.46

5.21

6.85

5.85

16.51

14.23

5.59

5.33

10.42

9.40

6.35 Max.

0.88

0.64

0.51 (min.)

14.73

12.70

2.28 (TYP.)

1.27

1.02

(with plating)

2.79

2.29

1.77

1.15

1.14

0.31

2.92

2.04

TO-263 Case Outline

1.01

(with plating)

0.38

4.83

4.06

10.29

9.65

1.40

Dimensions in millimeters

1.14

1.40 (max.)

9.66

8.63

15.88

14.60

2.80

2.28

1.40

1.14

1.00

0.50

0.7 (max.)

2.54 (TYP.)

www.vishay.com

Document Number 74800

26-Mar-02

GS1084CM3.3-HE3 [VISHAY]

相关型号：

GS1084CT

GS1084CT-18/27F-E3

GS1084CT-2.5

GS1084CT-3.3

GS1084CT1.8

GS1084CT2.5

GS1084CT3.3

GS1085

GS1085CE-18/27F-E3

GS1085CE/27F-E3

GS1085CE1.8

GS1085CE2.5