Diodes AP3503F - Manual (Page 9)

Data Sheet
340kHz, 3A Synchronous DC-DC Buck Converter AP3503F
Oct. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
9
Typical Application
C3
3.3nF
C12
10μF/25V
C22
22μF/25V
D1
Optional
L 10μH
R4
100k
R2 10k
R1
26.1k
R3
13k
C6
Optional
C4
10nF
C5
0.1μF
3
5
1
6
7
8
2
4
AP3503F
BS
IN
SW
GND FB
COMP
EN
SS
C21
22μF/25V
C11
10μF/25V
Input Voltage=12V
Output Voltage=3.3V
Figure 16. Typical Application of AP3503F