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.

Applications

• Post Regulator for Switching Supply

• Microprocessor Power Supplies

• Constant-Current Regulators

• Motherboard I/O Power Supplies

Mechanical Data

TO-252 (DPAK)

High temperature soldering guaranteed:

260°C/10 seconds at terminals

Case outlines are on the back page

+

+

--

For

fixed

voltage

device

Thermal

Limit

Current

Amp

Current

Limit

GM

ADJ

GND

1.25V

55

µA

Functional Block Diagram

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

TO-220AB

TO-263AB

GS1084CT

GS1084CM

GS1084CE

TO-252

(DPak)

1

2

3

1

2

3

1

2

3

Pin Definition

1. Adjust/Gnd.

GS1084

Vishay

formerly General Semiconductor

Document Number 74800

www.vishay.com

26-Mar-02

1

New Product

5A Low Dropout Positive Adjustable Regulator