DPA422-426
Solder Side
Component Side
TOP VIEW
Output
Diode
V
Transformer
+
D
S
Inductor
(Coupled)
V
DC
In
DPA-Switch
X
L
V
C
+
DC
Out
-
Opto-
coupler
-
V
Maximize hatched copper area for optimum heat sinking
Via between board layers
V
PI-2883-060602
Figure 28. Layout Considerations for DPA-Switch Using R Package.
Top Side PCB
Bottom Side PCB
Bottom Diode
Heat Sink
(Two-sided printed circuit board)
TOP VIEW
V
V
V
V
V
+
T
r
a
n
s
f
o
r
m
e
r
V
DC
In
V
-
-
S
S
D
S
V
V
DPA-Switch
+
C
L
X
F
DC
Out
V
V
-
PI-3805-012904
DPA-Switch Heat Sink
Opto-
coupler
V
Maximize hatched copper area for optimum heat sinking
Via between board layers
V
Figure 29. Layout Considerations for DPA-Switch Using G Package.
20
Rev. T 12/12
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