
AP1538
18V 3A 300KHz BUCK CONVERTER
Functional Description (Continued)
VIN
Vcc
Output
C7
R4
Option
AP1538
C2
OCSET
FB
C3
R5
EN
VSS
C6
L1
C1
Option
D1
VOUT
R1
+
+
C8 C4
-
-
R2
Figure: Layout numbering comparison.
AP1538 Rev. 2
11 of 14
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