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| AP6015 Datasheet, PDF (6/18 Pages) Diodes Incorporated – High Efficiency Step-Down Low Power DC-DC Converter | |||
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AP6015
High Efficiency Step-Down Low Power DC-DC Converter
Typical Application Circuit
For best transient response we suggest that RCC, CCC and L1 values as below.
RCC
CCC
L1-WURTH
VIN < 3.0V, VOUT < 2.5V
200Kâ¦
33PF
1.8µH
VIN ⥠3.0V, VOUT < 2.5V
68Kâ¦
100PF
1.8µH
VIN ⥠3.0V, VOUT ⥠2.5V
82Kâ¦
100PF
3.3µH
C1, C2 (MLCC)
10µF
10µF
10µF
(1) ADJ Output
VI 3.0 V to 5.5 V 1 PVCC
100 Ohm
2 VCC
LX 9 L1
FB 5
C1
10µF
AP6015
8 EN
PG 4
C3
PGND 10
1µF
GND CC
3
6
Rcc
C CC
100pF
R3
680K
R1
Power Good
R2
VO 2.5 V/800 mA
C2
10µF
R2: Suggest to be 39K~100K because of stability reasons.
VO
= VREF
à (1+
R1 )
R2
Typical Application Circuit for Adjustable Output Voltage Option
(2) FIXED Output
Typical Application
VI 5 V
1 PVCC
100 Ohm
2 VCC
L1
LX 9
FB 5
C1
10uF
AP6015
8 EN
PG 4
C3
1uF
PGND 10
GND CC
3
6
Rcc
CCC
100pF
VO 1.8/ 2.5/ 3.3V/ 800mA
R3
680K
Power Good
C2
10uF
AP6015 Rev. 2
Standard 5 V to 1.8/ 2.5/ 3.3V/ 800mA Conversion; High Efficiency
6 of 18
www.diodes.com
AUGUST 2008
© Diodes Incorporated
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