AP1512/A

50KHz, 2A/3A PWM Buck DC/DC Converter

Anachip Corp.

www.anachip.com.tw

Rev.1.1 Oct. 14, 2005

7/12

Typical Application Circuit

(1) Adjustable Type Circuit

A. Vin=10V~60V, Vout=5V; Iout=0.3A~2A, Iout below 0.3A DCM

C5

1n

L1

47uH

12

R2

3K

Vin

C2

1u

D1

SR360

ON/OFF

R3

1K

C1

100uF/100V

Vout

AP1512/A

1

5

2

4

3

Vin

SD

OUTPUT

FB

GND

0.1u

C3

470uF/16V

C7

B. Vin=10V~60V, Vout=3.3V, Iout=0.3A~2A, Iout below 0.3A DCM

C5

1n

L1

47uH

12

R2

2K

Vin

C2

1u

D1

SR360

ON/OFF

R3

1.2K

C1

100uF/100V

Vout

AP1512/A

1

5

2

4

3

Vin

SD

OUTPUT

FB

GND

0.1u

C3

470uF/16V

C7

(2) Fixed Type Circuit

A. Vin=10V~60V, Vout=5V, Iout=0.7A~2A, Iout below 0.7A DCM

L1

47uH

12

Vin

C2

1u

D1

SR360

ON/OFF

C1

100uF/100V

Vout

AP1512/A

1

5

2

4

3

Vin

SD

OUTPUT

FB

GND

10n

C3

470uF/16V

C7