DC/DC Converter
A_S-1WR2 & B_LS-1WR2 Series
Temperature Derating Curve
120
100
80
60
40
20
0
-40
40
85 105
0
Ambient Te mp.(
℃
)
Safe Oper ating Are a
Output Pow er Per ce nt(% )
Fig. 2
Design Reference
1. Typical application
If it is required to further reduce input and output ripple, a filter capacitor can be connected to the input and output terminals, see Fig.3.
Moreover, choosing suitable filter capacitor is very important, start-up problems may be caused by too large capacitance. To ensured
the modules running well, the recommended capacitive load values as shown in Table 1.
Dual
Vin
GND
Cin
DC DC
Cout
Cout
+Vo
0V
-Vo
+Vo
Recommended capacitive load value table (Table 1)
Vin
Cin
Single Vout Cout Dual Vout Cout
(VDC)
(µF)
(VDC)
(µF)
(VDC)
(µF)
3.3/5
9/12
15
24
4.7
2.2
2.2
1
3.3/5
9/12
15/24
--
10
2.2
1
--
±3.3/±5
±9/±12
±15/±24
--
4.7
1
0.47
--
Single
Vin
GND
Cin
DC DC
Fig.3
Cout
0V
2016.02.17-B/1
Page 4 of 5
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