LX1677 Просмотр технического описания (PDF) - Microsemi Corporation

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LX1677

AMD64 Processor VRM Controller

Microsemi Corporation 

TM

FB -

FB +

DACOUT

VID0

VID1

VID2

VID3

VID4

PWGD

VIN

ROSC

VCC

GND

LX1677

®

AMD64 Processor VRM Controller

PRODUCTION DATA SHEET

SIMPLIFIED BLOCK DIAGRAM

DFOUT EA1 -

EO1

VCCL

Diff Amp

-

Phase 1

Error Amp

-

0°

-

I-MAX

SQ

R

I-MIN

50µA

DAC

DACOUT

- 30mV

DACOUT

0.85

2.35

Band-

gap

VCC

VIN

PGOOD

_

UV

+

_

OV

+

UVLO

POR

ILIM

SRS

Fault

S

SS

-

180°

gm

PGOOD

DACOUT

AMP

FRQ

OSC

VIN

0°

180°

PGN VS3

35mV

+ offset

35mV _

offset

ILIM

ILIM

+IMAX

_

_IMIN

+

VCCL

ENA

I-MIN

RQ

S

I-MAX

Phase 2

Integrating

- Amp

100K

90K

90K

Phase 2

Differential

Amp

-

90K

90K

Bandgap

VC1

HO1

VS1

LO1

PGN

VC2

HO2

VS2

LO2

EO2

EA2 -

LP1

LP2

ILIM3 ILIM1

PGN3 I-Min VS3 I-Max VC3

ENA

Copyright © 2000

Rev 1.1, 2003-03-03

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 7

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