Date: 7/24/06 Rev H

SP085 3A Low Dropout Linear Regulator

© 2006 Sipex Corporation

general Description

The S

P1085 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 3A of load

current. The series features on-chip thermal shutdown. It also includes a bandgap reference and a current limiting circuit.

The S

P1085 is available in 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V and adjustable versions. The fixed versions integrate

the adjust resistors. The adjustable version can set the output voltage with two external resistors. The S

P1085 series is

available in standard packages of TO-263-3L, TO-220 and TO-252.

features

Low Dropout Voltage: Typical 1.3V at 3A

Current Limiting and Thermal Protection

Output Current: 3A

Current Limit: 4.5A

Line Regulation: 0.015% (Typical)

Load Regulation: 0.1% (Typical)

Available in RoHS Compliant, Lead Free

Packaging

Applications

High Efficiency Linear Regulators

Battery Charger

Post Regulation for Switching Supplies

Microprocessor Supply

Mother Board Power Supplies

DVD - Video Player

Telecom Equipment

Set Top

Boxes and Web Box Modular Supplies

Figure . Package Types of SP085

TO-252

TO-220

TO-263-3L

TO-220

INPUT

OUTPUT

ADJ/GND

1

2

3

SP1085

3A Low Dropout Linear Regulator

Solved by

TM