AP1538 DIODES [Diodes Incorporated], AP1538 Datasheet - Page 5

• Manufacturer Part Number: AP1538
• Description: 18V 3A 300KHz BUCK CONVERTER
• Manufacturer: DIODES [Diodes Incorporated]

Typical Application Circuit
Notes:
AP1538 Rev. 2
V
IN
6. Suggested DIODES Power Schottky P/N: B340 series or PDS340.
7. Suggested C
8. Typical feedback compensation (Cc): 5600pF.
C
470uF
IN
CVcc
0.1uF
OUT
for V
R
OCSET
3K
OUT
< 1V; 680μF.
100K
C
R
0.1uF
Option
C
EN
EN
OCSET
V
OCSET
Vcc
OUT
R
EN
B
= V
= 0.7K~5 K ohm
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AP 1538
FB
x ( 1+ R
5 of 14
V
Output
SS
A
FB
/R
B
)
18V 3A 300KHz BUCK CONVERTER
(Note 8)
(Note 6)
D1
Option
22uH
L1
Cc
1.3K
R
6.8K
R
A
B
+
-
0.1uF
C
V
OUT
©
AP1538
+
-
Diodes Incorporated
= 5V/3A
C
JUNE 2008
470uF
(Note 7)
OUT