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Date: 5/25/04

SPX2810 1A Low Dropout Linear Regulator

© Copyright 2004 Sipex Corporation

1A Low Dropout Positive Linear Regulator

SPX2810

FEATURES

■ Guaranteed 1A Output

■ Three Terminal Adjustable or Fixed

2.5V, 3.0V and 3.3V

■ Low Quiescent Current

■ Low Dropout Voltage of 1.1V at Full Load

■ 0.2% Line and 0.3% Load Regulation

■ Voltage Temperature Stability 0.25%

■ Overcurrent and Thermal Protection

■ Available Packages: SOT-223,TO-252,

TO-220, and TO-263

®

The SPX2810 is a low power positive-voltage regulator designed to satisfy moderate power

requirements with a cost effective, small footprint solution. This device is an excellent choice for

use in battery-powered applications and portable computers. The SPX2810 has a very low

quiescent current and a low dropout voltage of 1.1V at full load. As output current decreases,

quiescent current flows into the load, increasing efficiency. SPX2810 is available in adjustable

or fixed 2.5V, 3.0V and 3.3V output voltages.

The SPX2810 is offered in several industry standard 3-pin surface mount packages: SOT-223,

TO-252, TO-220 and TO-263. An output capacitor of 10µF or larger, provides unconditionally

stability for most applications.

DESCRIPTION

Now Available in Lead Free Packaging

TYPICAL APPLICATION CIRCUITS

APPLICATIONS

■ SCSI-II Active Terminator

■ Portable/Palm Top/Notebook

Computers

■ Battery Chargers

■ Disk Drives

■ Portable Consumer Equipment

■ Portable Instrumentation

■ SMPS Post-Regulator

SPX2810 is 2% Accuracy

SPX2810A is 1% Accuracy

IN

OUT

SPX2810

R

1

R

2

C

2

V

V

REF

50µA

ADJ

4.7µF +

12

3

SPX2810

3 Pin TO-263

ADJ/GND

V

IN

V

OUT