Characteristic Curves
95
90
85
80
36V
75
48V
75V
70
65
0
4
8
12
16
20
Output current, A
Figure 1. QLS20ZG Efficiency vs. Output Load
95
90
85
80
36V
75
48V
70
75V
65
0
5
10
15
20
25
Output current, A
Figure 2. QLS25ZE Efficiency vs. Output Load
95
90
85
80
75
36V
48V
70
75V
65
0
5
10
15
20
25
Output current, A
Figure 3. QLS25ZE Efficiency vs. Output Load
QLS25 DC-DC Series Data Sheet
25A Quarter-Brick
4
3.5
3
2.5
2
1.5
1
0.5
0
0
10 20 30 40 50 60 70
Input voltage, VDC
Figure 4. QLS20ZG Input Characteristic
3.5
3
2.5
2
1.5
1
0.5
0
0
10 20 30 40 50 60 70
Input voltage, VDC
Figure 5.QLS25ZE Input Characteristic
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
10 20 30 40 50 60 70
Input voltage, VDC
Figure 6. QLS25ZD Input Characteristic
SEP 12, 2003 revised to OCT 26, 2006
Page 4 of 8
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