© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

700mA SmartLDO

TM

SC1537

PRELIMINARY - July 25, 2000

4

BLOCK DIAGRAM

PIN CONFIGURATION

TO-263-5L

SO-8

Top View

PIN DESCRIPTION

Pin Name

SO-8 Pin #

TO-263-5L Pin #

Pin Function

DR

4

5

Driver output for external P-channel MOSFET pass element.

GND

5,6,7,8

3/TAB

Logic and power ground.

VAUX

1

1

This is the auxiliary input supply, nominally 3.3V.

VIN

2

2

This is the main input supply for the IC, nominally 5V.

VO

3

4

LDO 3.3V output.