LTC3780IUH(RevE) 查看數據表（PDF） - Linear Technology

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LTC3780IUH
(Rev.:RevE)

High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller

Linear Technology 

BLOCK DIAGRAM

STBYMD

FCB

1.2V

4(VFB)

1.2μA

SS

RUN

100k

VIN

+6V

VIN

5.7V +

–

EXTVCC

INTVCC

SGND

LTC3780

ILIM

+

–

IREV

+

–

ICMP

+

–

INTVCC VIN

BOOST2

FCB

TG2

BUCK

LOGIC

SW2

INTVCC

BG2

PGND

BG1

FCB

BOOST

LOGIC

INTVCC SW1

TG1

BOOST1

OV

0.86V

INTVCC

VOUT

SLOPE

VREF

EA

VOSENSE

VFB

SHDN

RST

4(VFB)

0.80V

ITH

RUN/

SS

SENSE+

SENSE–

PLLIN

PHASE DET

FIN

50k

6V

LDO

REG

–

0.86V

+

INTERNAL

SUPPLY VOSENSE

–

PLLFLTR

CLK

OSCILLATOR

PGOOD

RLP

CLP

+

0.74V

3780 BD

RSENSE

3780fe

11

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