Diodes AP6015 - Manual (Page 6)

AP6015
High Efficiency Step-Down Low Power DC-DC Converter
AP6015 Rev. 3 6 of 18 FEBRUARY 2009
www.diodes.com © Diodes Incorporated
Typical Application Circuit
For best transient response we suggest that R
CC
, C
CC
and L1 values as below.
R
CC
C
CC
L1-WURTH C1, C2 (MLCC)
V
IN
< 3.0V, V
OUT
< 2.5V 200K Ω 33PF 1.8µH 10µF
V
IN
≥ 3.0V, V
OUT
< 2.5V 68K Ω 100PF 1.8µH 10µF
V
IN
≥ 3.0V, V
OUT
≥ 2.5V 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
I
3.0 V to 5.5 V
V
O
2.5 V/800 mA
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
I
5 V V
O
1.8/ 2.5/ 3.3V/ 800mA
L1
LX
FB
PG
PGND
PVCC
EN
VCC
GND CC
AP6015
Typical Application
C
CC
R3
680K
C1
10uF
1uF
100 Ohm
100pF
Rcc
C3
Standard 5 V to 1.8/ 2.5/ 3.3V/ 800mA Conversion; High Efficiency