MB3828 查看數據表（PDF） - Fujitsu

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MB3828

Pentium® DC/DC Converter IC

Fujitsu 

MB3828

s BLOCK DIAGRAM

–IN 5

FB 6

RS

2

CS

4

VSENSE

20

CS

Error

– Amp.

+

+

PWRGOOD

21

POWERGOOD

PWRGD (±10%)

Overvoltage

protection

OVP

DTC

(17.5%)

PWM

Comp.1

+

+

–

PWM

VB Comp.2

+

–

Drive

1

Drive

2

VB

13

CB

10

OUT1

8

VS

9

OUT2

11

PGND

12

VD0 14

VD1 15

VD2 16

VD3 17

VD4 18

D/A

(5-bit)

OSC

CT

(40 pF)

VSCP

1

RT

VCS

SCP

Comp.

+

–

+

–

CS

Comp.

19 CTL

CTL

bias

LOGIC

7 ENB

SCP

UVLO

22

CSCP

bias

Power

Ref ON/OFF

CTL

(3.5 V)

VCC

23

24

3

VREF SGND

4

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