Not Recommended for New Designs
Electrical Specifications (continued)
Efficiency Graphs
Efficiency vs. Output Current
100
98
96
100
98
96
V?I Chip Regulator
Efficiency vs. Output Current
94
92
90
88
86
84
82
Vin
38 V
45 V
55 V
94
92
90
88
86
84
82
80
Vin
38 V
45 V
55 V
0.7
1.3
1.9
2.5
3.1
3.7
4.3
4.9
5.5
6.1
6.7
0.7
1.3
1.9
2.5
3.1
3.7
4.3
4.9
5.5
6.1
6.7
Output Current (A)
Figure 6 — Efficiency vs. output current at 48 Vf
Efficiency vs Output Current
100
95
90
85
80
75
Vin
38 V
45 V
55 V
Output Current (A)
Figure 7 — Efficiency vs. output current at 36 Vf
0.7
1.3
1.9
2.5
3.1
3.7
4.3
4.9
5.5
6.1
6.7
Output Current (A)
Figure 8 — Efficiency vs. output current at 26 Vf
vicorpower.com
800-735-6200
V?I Chip Regulator
P045F048T32AL
Rev. 2.5
Page 5 of 14
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