LM341/LM78MXX Series

3-Terminal Positive Voltage Regulators

General Description

The LM341 and LM78MXX series of three-terminal positive

voltage regulators employ built-in current limiting, thermal

shutdown, and safe-operating area protection which makes

them virtually immune to damage from output overloads.

With adequate heatsinking, they can deliver in excess of

0.5A output current. Typical applications would include local

(on-card) regulators which can eliminate the noise and de-

graded performance associated with single-point regulation.

Features

n

Output current in excess of 0.5A

n

No external components

n

Internal thermal overload protection

n

Internal short circuit current-limiting

n

Output transistor safe-area compensation

n

Available in TO-220, TO-39, and TO-252 D-PAK

packages

n

Output voltages of 5V, 12V, and 15V

Connection Diagrams

TO-39 Metal Can Package (H)

01048405

Bottom View

Order Number LM78M05CH, LM78M12CH or LM78M15CH

See NS Package Number H03A

TO-220 Power Package (T)

01048406

Top View

Order Number LM341T-5.0, LM341T-12, LM341T-15, LM78M05CT, LM78M12CT or LM78M15CT

See NS Package Number T03B

TO-252

01048419

Top View

Order Number LM78M05CDT

See NS Package Number TD03B

August 2005

© 2005 National Semiconductor Corporation

DS010484

www.national.com