RT9238 datasheet(2/24 Pages) ETC

Part #	RT9238

Description	VRM 8.5 PWM AND TRIPLE LINEAR POWER SYSTEM CONTROLLER

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RT9238

Preliminary

www.richtek-ic.com.tw

DS9238-01 July 2001

2

Ordering Information

RT9238

Typical Application Circuit

Fig.1 VRM 8.5 Power Solution

Operating temperature range

C: Commercial standard

Package type

S : SOP-28

7

6

5

10

12

28

23

8

27

26

25

24

22

5V

12V

16

11

1

17

20

C14

1µF

VTTPG

19

15

VTT

VOUT2

1.2V

13

9

VAUX

18

14

RT9238

R1

10

2

FIX

Q3

PHD3055E

+ C5

1000µF

C6

1µF

R6

1K

+

Q4

PHD3055E

+

AGP

VOUT3

1.5V

C9

560µF

C8

1µF

Q5

2SD1802

C10

1µF

C11

560µF

VOUT4

1.8V

MCH

+

C2

1000pF

R2

1K

L1

1µH

C1

2000µF

Q1

PHB83N03LT

Q2

PHB95N03LT

L2; 1.8µH

R3

10K

+

C3

8000µF

C4

1µF

21

R6

1K

4

3

VID25

VID0

VID1

VID2

VID3

C12

0.1µF

C13

0.1µF

FAULT

VCORE

VOUT1

VRM8.5

PGOOD

VCC

FIX

DRIVE2

VSEN2

VTTPG

VAUX

DRIVE3

VSEN3

DRIVE4

VSEN4

GND

OCSET1

PGOOD

UGATE1

PHASE1

LGATE1

PGND

FB1

VDAC

ICOMP

VID25

VID0

VID1

VID2

VID3

FAULT/VID4

SS24

SS13

C15

10µF

Z1

15V

C16

10nF

C17

1µF

* C17 near the FB1 pin

as close as possible

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RT9238 Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

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