SC431

© 1998 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

ADJUSTABLE SHUNT REGULATOR

April 13, 1998

1

BLOCK DIAGRAM

PIN CONFIGURATIONS

DESCRIPTION

The SC431 is a three terminal adjustable shunt regula-

tor with thermal stability guaranteed over temperature.

The output voltage can be adjusted to any value from

2.5V (V

SC431 has a typical dynamic output impedance of

0.25

Ω. Active output circuitry provides a very sharp

turn on characteristic, making the SC431 an excellent

replacement for zener diodes.

The SC431 shunt regulator is available in three voltage

tolerances (0.5%, 1.0% and 2.0%) and three package

options (SOT-23-3, SO-8 and TO-92). The three volt-

age tolerances allow the designer the opportunity to

select the proper cost/tolerance for their application.

FEATURES

APPLICATIONS

TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com

SOT-23 -3 Lead (Top View)

SOIC 8 Lead (Top View)

TO-92 (Top View)

SYMBOL DIAGRAM