DC/DC Converter
E_XT-1WAR2 Series
Product Characteristic Curve
Tolerance Envelope Curve
+15%
+10%
Temperature Derating Curve
Safe Operating Area
120
100
M
a
p
x
.
+5%
T
y
+2.5%
-2.5%
-7.5%
80
60
0
M
i
n
.
-5%
40
20
0
-10%
10%
20%
40%
80%
100%
60%
100 105
80
0
40
-40
Output Current Percent(%)
(Nominal Input Voltage)
℃
Ambient Temperature(
Fig. 2
)
Fig. 1
Efficiency Vs Input Voltage (Full Load)
Efficiency Vs Output Load(Vin=5V)
100
95
90
85
80
75
70
65
60
55
50
100
90
80
70
60
50
40
30
20
10
0
E0505XT-1WAR2
E0505XT-1WAR2
4.5 4.6 4.7 4.8 4.9
5
5.1 5.2 5.3 5.4 5.5
10
20
30
40
50
60
70
80
90 100
Input Voltage(V)
Output Current Percentage (%)
Efficiency Vs Input Voltage (Full Load)
Efficiency Vs Output Load(Vin=12V)
100
95
90
85
80
75
70
65
60
55
50
100
90
80
70
60
50
40
30
20
10
0
E1205XT-1WAR2
E1205XT-1WAR2
10.8 11.1 11.4 11.7 12.0 12.3 12.6 12.9 13.2
Input Voltage(V)
10
20
30
40
50
60
70
80
90 100
Output Current Percentage (%)
Design Reference
1. Typical application circuit
If it is required to further reduce input and output ripple, a filter capacitor may be connected to the input and output terminals, see Fig.3.
Moreover, choosing a suitable filter capacitor is very important, start-up problems may be caused if the capacitance is too large. Under the
condition of safe and reliable operation, the recommended capacitive load values are shown in Table 1.
Recommended capacitive load value table (Table 1)
Vin(VDC)
Cin(μF)
4.7
Vo (VDC)
±5
Cout(μF)
3.3
5
4.7
2.2
1
+Vo
0V
Vin
Cout
Cout
4.7
±9
Cin
DC
DC
12
15
24
2.2
±12
GND
-Vo
2.2
±15
1
Fig.3
1
±24
0.47
2015.04.14-A/2
Page 3 of 5
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