SC1401ISS datasheet(11/17 Pages) SEMTECH

Part #	SC1401ISS

Description	HIGH PERFORMANCE SYNCHRONOUS BUCK CONTROLLER WITH LDO FOR PORTABLE POWER

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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SC1401

652 MITCHELL ROAD

NEWBURY PARK CA 91320

HIGH PERFORMANCE SYNCHRONOUS BUCK

CONTROLLER WITH LDO FOR PORTABLE

POWER

November 21, 2000

11

Figure 2: Main PWM Modulator Control Block

Figure 1: SC1401 Block Diagram

GND

SHDN

PSAVE

SYNC

ENABLEIO

RESET

VDD2

VDD1

GATEIO

IOS

BST

DH

PHASE

DL

PGND

CSH

CSL

FB

PGND

V5V

DIGITAL

CONTROLLER

UVLO

VBG

BG

REF

OCS

COUNTER

DAC

POWER

GOOD

BG

REF

VGB

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SC1401ISS Datasheet(PDF) 11 Page - Semtech Corporation

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