LM123/LM223

LM323

March 1993

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS

.

OUTPUT CURRENT : 3A

.

INTERNAL CURRENT AND THERMAL LIMI-

TING

.

TYPICAL OUPUT IMPEDANCE : 0.01

Ω

.

MINIMUM INPUT VOLTAGE : 7.5V

.

POWER DISSIPATION : 30W

DESCRIPTION

The LM123, LM223, LM323 are three-terminal posi-

tive voltage regulators with a preset 5V output and

a load driving capability of 3A. New circuit design

and processing techniques are used to provide the

high output current without sacrificing the regulation

characteristics of lower current devices.

The 3A regulator is virtually blowout proof.

Current limiting, power limiting and thermal shut-

down provide the same high level of reliability ob-

tained with these techniques in the LM209, 1A regu-

lator.

An overall worst case specification for the combined

effects of input voltage, load current, ambient tem-

perature, and power dissipation ensure that the

LM123, LM223, LM323 will perform satisfactorily as

a system element.

TO-3

PIN CONNECTION

1 - Input

2 - Output

TO-3

(bottom view)

ORDER CODES

Part Number

Temperature

Range

Package

KT

LM123

-55

•

LM223

-25

•

LM323

0

••

TO-220

TO-220

(front view)

1 - Input

2 - Output

3 - GND

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