SC1406A

© 2000 SEMTECH CORP.

652 MITCHELL ROAD

NEWBURY PARK CA 91320

PORTABLE PENTIUM

POWER SUPPLY CONTROLLER

January 28, 2000

3

Pentium is a registered trademark of Intel Corporation

PIN DESCRIPTION (Cont.)

Pin

Pin Name Pin Function

20

CORE

Main CORE converter output feedback.

21

DAC

Main controller digital to analog output.

22

GND

Ground

23

CO

Comparator output. Main regulator controller output used to drive the input of the SC1405 driver

IC.

24

VCC

Input power. Supply voltage input. This input is capable of accepting 3.3V or 5.0V supply

voltage.

25

CMP

Core comparator input pin.

26

CMPREF Core comparator reference input pin.

27

CL

Current limit input pin.

28

CLREF

Current limit reference input pin.