LM323, A

SEMICONDUCTOR

TECHNICAL DATA

3–AMPERE, 5 VOLT

POSITIVE

VOLTAGE REGULATORS

ORDERING INFORMATION

Order this document by LM323/D

Pin 1. Input

2. Ground

3. Output

T SUFFIX

PLASTIC PACKAGE

CASE 221A

Heatsink surface is connected to Pin 2.

3

1

2

Device

Operating

Temperature

Range

Package

LM323T

LM323AT

TJ = 0° to +125°C

Plastic

Power

Output

Voltage

Tolerance

4%

2%

1

MOTOROLA ANALOG IC DEVICE DATA

Positive Voltage Regulators

The LM323,A are monolithic integrated circuits which supply a fixed

positive 5.0 V output with a load driving capability in excess of 3.0 A. These

three–terminal regulators employ internal current limiting, thermal shutdown,

and safe–area compensation. The A–suffix is an improved device with

superior electrical characteristics and a 2% output voltage tolerance. These

regulators are offered with a 0

° to +125°C temperature range in a low cost

plastic power package.

Although designed primarily as a fixed voltage regulator, these devices

can be used with external components to obtain adjustable voltages and

currents. These devices can be used with a series pass transistor to supply

up to 15 A at 5.0 V.

Simplified Application

A common ground is required between the input and the output voltages. The input

voltagemust remain typically 2.5 V above the output voltage even during the low point

on the input ripple voltage.

*Cinisrequiredifregulatorislocatedanappreciable

** CO is not needed for stability; however, it does

LM323, A

Input

Cin*

0.33

µF

CO**

Output

© Motorola, Inc. 1996

Rev 0