Diodes AP1538 - Manual (Page 11)

AP1538
18V 3A 300KHz BUCK CONVERTER
AP1538 Rev. 5 11 of 13 OCTOBER 2009
DS31451 www.diodes.com © Diodes Incorporated
AP1538
+
- V
SS EN
C1 R1
R2
FB
Vcc Output
C3
V
OUT
V
IN
R4
OCSET C4 C2
Option
C7
C6
R5
Option
L1
+
-
C8
D1
Figure: Layout numbering comparison.
Marking Information
(1) SOP-8L
( Top View )
AP1538
YY WW X X
Logo
Part Number
5 8
4 1
WW : Week : 01~52; 52
YY : Year : 08, 09,10~
G : Green
X : Internal Code
represents 52 and 53 week
(2) SOP-8L-DEP
( Top View )
AP1538
YY WW X X
Logo
Part No.
5 8
4 1
E
WW : Week : 01~52; 52
YY : Year : 08, 09,10~
G : Green
X : Internal Code
represents 52 and 53 week
SOP-8L-DEP
Functional Description
(Continued)