RT8223A datasheet(2/26 Pages) RICHTEK

Part #	RT8223A

Description	High Efficiency, Main Power Supply Controller for Notebook Computers

Download	26 Pages

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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2 / 26 page

RT8223A/B

2

DS8223A/B-04 April 2011

www.richtek.com

Typical Application Circuit

Pin Configurations

(TOP VIEW)

RT8223B

WQFN-24L 4x4

RT8223A

WQFN-24L 4x4

For Fixed Voltage Regulator

ENTRIP1

FB1

REF

TONSEL

FB2

ENTRIP2

NC

VREG5

PGND

SKIPSEL

EN

VIN

GND

1

2

3

4

5

6

78

9

10

12

11

18

17

16

15

14

13

21 20 19

24

22

23

25

ENTRIP1

FB1

REF

TONSEL

FB2

ENTRIP2

ENC

VREG5

PGND

SKIPSEL

EN

VIN

GND

1

2

3

4

5

6

78

9

10

12

11

18

17

16

15

14

13

21 20 19

24

22

23

25

RT8223A

PHASE1

LGATE1

BOOT1

UGATE1

VOUT1

5V

VIN

VREG5

VREG3

PGOOD

GND

16

Exposed Pad (25)

19

22

20

21

24

23

17

8

PHASE2

LGATE2

BOOT2

UGATE2

VOUT2

Q2

L2

C7

C13

3.3V

R9

C8

VIN

10µF

0.1µF

R10

C10

10

11

9

12

7

BSC119

N03S

Q4

BSC119

N03S

0

R8

0

C9

4.7µH

220µF

Q1

L1

C2

C3

R4

10µF

0.1µF

R5

C4

BSC119

N03S

Q3

BSC119

N03S

0

R3 0

C1

6.8µH

220µF

R7

3.9

C6

0.1µF

5V Always On

3.3V Always On

ENTRIP1

ENTRIP2

1

6

FB2

FB1

2

5

R1

150k

R2

150k

C5

4.7µF

R6

100k

PGOOD Indicator

C12

4.7µF

REF

3

C11

0.22µF

TONSEL

SKIPSEL

4

14

Frequency Control

PWM/DEM/Ultrasonic

EN

ON

OFF

13

PGND 15

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