AP6015

High Efficiency Step-Down Low Power DC-DC Converter

AP6015 Rev. 3

6 of 18

FEBRUARY 2009

www.diodes.com

Typical Application Circuit

L1-WURTH

C1, C2 (MLCC)

200K

Ω

33PF

1.8µH

10µF

68K

Ω

100PF

1.8µH

10µF

82K

Ω

100PF

3.3µH

10µF

(1) ADJ Output

9

5

4

8

6

3

10

2

1

Power Good

C2

10µF

C1

10µF

V

V

L1

LX

FB

PG

PGND

PVCC

EN

VCC

GND

CC

AP6015

R3

680K

R1

C

CC

100pF

R2

1µF

100 Ohm

Rcc

R2: Suggest to be 39K~100K

because of stability reasons.

C3

)

1

(

2

1

R

R

V

V

REF

O

+

×

=

Typical Application Circuit for Adjustable Output Voltage Option

(2) FIXED Output

9

5

4

2

6

3

10

8

1

C2

10uF

Power Good

V

V

L1

LX

FB

PG

PGND

PVCC

EN

VCC

GND

CC

AP6015

Typical Application

R3

680K

C1

10uF

1uF

100 Ohm

100pF

Rcc

C3

Standard 5 V to 1.8/ 2.5/ 3.3V/ 800mA Conversion; High Efficiency