LTC3531 데이터 시트보기 (PDF) - Linear Technology

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LTC3531

200mA Buck-Boost Synchronous DC/DC Converters

Linear Technology 

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

VBEST

VIN

BUCK, 4SW,

AND

STATE

BOOST

MODE DETECT

VOUT

MACHINE

AND

LOGIC

1.225V VREF

R2

THERMAL

SHUTDOWN

VOUT

COMPARATOR

PGND GND

COMBINED

FOR TSOT

R1

INTERNAL

R1 AND R2

DISABLED

FOR ADJ VERSION

FB

NOT BONDED

FOR 3.3V AND

3V VERSIONS

3531 BD

3531fb

8

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