LTC1628-PG Ver la hoja de datos (PDF) - Linear Technology

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LTC1628-PG

Single-Phase,High Efficiency DC/DC Controller for Intel Mobile CPUs

Linear Technology 

W

FU CTIO AL DIAGRA

R3

MCH_PG

R4

RDPSLP

LTC3734

STP_CPUB

R6

RDPRSLP

DPRSLPVR

R5

RBOOT

FREQSET

CLK

OSCILLATOR

MD

DELAY

COMPOSITE

PG

PGOOD

RUN

STP_CPUB

DPRSLPVR

VID CHANGE

110μs BLANKING

VOA+

R2

VOA–

R1

OAOUT

A1

+

–

0.66V

VFB

0.54V

BOOST

DROP

OUT

DET

SQ

RQ

BOT PSI

TOP ON

TG

TOP

SW

SWITCH

LOGIC

PVCC

BG

BOT

DPRSLPVR

SHDN

PGND

PVCC

PVCC

I1

–+

– I2

+

SVCC

36k SENSE+

3V

0.5μA

PSIB

0.60V

+

PSI

–

VREF

5.33(VFB)

SLOPE

COMP

SVCC

5V

+

SGND

RATTEN

5.33k

DPRSLPVR

MD

VID CHANGE

1.5μA

6V

6-BIT VID DECODER

54k

SHDN

RST

5.33(VFB)

36k SENSE–

54k

2.4V

EA

OV

VFB

0.60V

0.66V

ITH

RUN

SOFT-

START

RUN/SS

RUN

1.5V

PVCC

VIN

DB

CB

+

D1

CIN

COUT

RSENSE

L

VFB

CC

CC2 RC

CSS

VOUT

RVID

VID0 VID1 VID2 VID3 VID4 VID5

3735 FD

3734f

9

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