RT9228CS View Datasheet(PDF) - Richtek Technology

Part Name

Description

Manufacturer

RT9228CS

Advanced PWM and Dual Linear Power Controller

Richtek Technology 

Typical Application Circuit

RT9228

12V

5V

GND

F1

L1

15A

1µH C1-4 +

4x1000µF

R1 C5-6

10 2x1µF

C20

C7

3.3V

Q3

RFD3055

V OUT3

1.5V

R6

+ C9 187

1000µF

V OUT2

2.5V

R8

+ C10 1K

270µF

1µF

1

12

VCC

20

VIN2 OCSET1

+

C8

1000µF

PGOOD 7

15 GATE3

16 FB3

UGATE1 24

PHASE1 23

R7

1K

13

RT9228

LGATE1 22

VOUT2

21

11 FB2

PGND

R9

1K

VSEN1 19

6 VID0

FB1 18

5 VID1

4 VID2

FAULT 8

3 VID3

2 VID4 GND

9

SS

14

1000pF

R2

1.21k

POWERGOOD

Q1

PHB83N03LT

R3

10K

L2

PHB95N03LT 3.5µH C13-19 +

Q2

R4 7x1000µF

4.99K

C11

R5 0.68µF

732K

C12

0.039µF

V OUT1

1.3 to 3.5V

DS9228-03 July 2001

www.richtek.com

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