LTC3531 Datasheet, PDF(8/16 Page) Linear Technology – 200mA Buck-Boost Synchronous DC/DC Converters

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LTC3531 Datasheet, PDF (8/16 Pages) Linear Technology – 200mA Buck-Boost Synchronous DC/DC Converters

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LTC3531/

LTC3531-3.3/LTC3531-3

BLOCK DIAGRA

SW1

SW2

SW A

VIN

SW D

VOUT

SW B

GATE DRIVERS

AND

ANTICROSS

CONDUCTION

SW C IZERO/IVALLEY

DETECT

365mA

PEAK

CURRENT

LIMIT

VIN

1.65V

SHDN

UVLO

SHUTDOWN

VBEST

VIN

BUCK, 4SW,

AND

STATE

BOOST

MODE DETECT

VOUT

MACHINE

AND

LOGIC

1.225V VREF

THERMAL

SHUTDOWN

VOUT

COMPARATOR

PGND GND

COMBINED

FOR TSOT

INTERNAL

R1 AND R2

DISABLED

FOR ADJ VERSION

NOT BONDED

FOR 3.3V AND

3V VERSIONS

3531 BD

3531fb

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