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AP1539 데이터시트(PDF) 5 Page - Diodes Incorporated

부품명 AP1539
상세설명  18V 4A 300KHz BUCK CONVERTER
PDF  12 Pages
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제조업체  DIODES [Diodes Incorporated]
홈페이지  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1539 데이터시트(HTML) 5 Page - Diodes Incorporated

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AP1539
18V 4A 300KHz BUCK CONVERTER
AP1539 Rev. 2
5 of 12
FEBRUARY 2009
www.diodes.com
© Diodes Incorporated
Typical Application Circuit
AP 1539
+
-
VSS
EN
Cc
R
A
R
B
D1
FB
Vcc
Output
CVcc
V
OUT = 5V/4A
V
IN
R
OCSET
OCSET
C
OUT
C
IN
Option
(Note 8)
C
OCSET
C
EN
R
EN
Option
100K
VOUT =VFB x (1+RA/RB)
R
B= 0.7K~5 K ohm
L1
22uH
6.8K
1.3K
3.9K
0.1uF
+
-
C
0.1uF
470uF
470uF
0.1uF
(Note 7)
(Note 6)
Notes:
6. Suggested DIODES Power Schottky P/N: B540 series or PDS540.
7. Suggested COUT for VOUT < 1V; 680μF.
8. Typical feedback compensation (Cc): 5600pF.



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