LTC3855IUJPBF datasheet(11/44 Pages) LINER

Part #	LTC3855IUJPBF

Description	Dual, Multiphase Synchronous DC/DC Controller with Differential Remote Sense

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC3855

3855f

FuncTional block DiagraM

4.7V

–

+

–

+

VIN

1µA

SLOPE COMPENSATION

UVLO

SLOPE RECOVERY

ACTIVE CLAMP

OSC

TEMPSNS

S

R Q

3k

RUN

SWITCH

LOGIC

AND

ANTI-

SHOOT

THROUGH

BG

ON

FCNT

0.6V

OV

1.2V

0.5V

ITH RC

INTVCC

ILIM

ICMP

CC1

SS

SGND

R1

0.66V

R2

RUN

PGND

PGOOD

INTVCC

EXTVCC

IREV

SW

TG

CB

VIN

CIN

VIN

SLEEP

BOOST

BURSTEN

–

+

–

+

UV

OV

CVCC

VOUT

COUT

M2

M1

L1

DB

MODE/PLLIN

SENSE+

SENSE–

0.6V

REF

TK/SS

RUN

0.55V

VFB

FREQ

PLL-SYNC

MODE/SYNC

DETECT

40k

+

5V

REG

1.2µA

CSS

+

DIFFP

DIFFN

–

+

–

+

F

CLKOUT

0.54V

–

+

DIFFOUT

PHASMD

ITEMP

3855 FBD

1

51k

ITHB

EA

DIFFAMP

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LTC3855IUJPBF Datasheet(PDF) 11 Page - Linear Technology

LTC3855IUJPBF Datasheet(HTML) 11 Page - Linear Technology

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