FAN5018B 查看數據表（PDF） - Fairchild Semiconductor

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FAN5018B

6-Bit VID Controller 2-4 Phase VR10.X Controller

Fairchild Semiconductor 

FAN5018B

Internal Block Diagram

VCC

28

EN 11

UVLO

Shutdown

& Bias

GND 19

DAC

+150mV

CSREF

CMP

DAC

-250mV

CMP

PWRGD 10

Delay

ILIMIT 15

EN

DELAY 12

COMP 9

PRODUCT SPECIFICATION

RT

RAMPADJ

14

13

2K

Oscillator

Phase

Current

Balancing

Circuit

CMP

CMP

CMP

CMP

SET

EN

RESET

RESET

2/3/4 Phase Driver

Logic

RESET

RESET

CROWBAR

CURRENT

LIMIT

Current

Limit

Circuit

CSA

27 PWM1

26 PWM2

25 PWM3

24 PWM4

23 SW1

22 SW2

21 SW3

20 SW4

17 CSSUM

16 CSREF

18 CSCOMP

Soft

Start

Error

Amp

+

-

8 FB

REF

7

FBRTN

VID

DAC

Sel VRM9 Table

3.75V

123

VID4 VID3 VID2

456

VID1 VID0 VID5

8

REV. 1.0.0 Jul/15/05

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