PRM48DH480B03 Datasheet, PDF (9/22 Pages) Vicor Corporation – DC to DC Regulator

PRM48DH480T250B03
6.0 APPLICATIONS CHARACTERISTICS
The following figures present typical performance at T_C = 25ºC, unless otherwise noted. See associated figures for general
trend data.
No Load Power Dissipation vs. Line
Module Enabled - Nominal V_OUT
4.0
3.0
2.0
1.0
38 40 42 44 46 48 50 52 54 56 58 60
Input Voltage [V]
T_CASE:
-40 ºC
25 ºC
100 ºC
Figure 1 - No load power dissipation vs. V_IN, module
enabled
Efficiency & Power Dissipation
96
94
92
90
88
86
84
82
80
78
76
74
72
70
68
0
V_OUT = 20 V
0.5 1 1.5 2
T_CASE = -40 ºC
2.5 3 3.5 4
14
12
10
8
6
4
2
0
4.5
Load Current [A]
V_IN:
38
48
60
38
48
60
Figure 3 – Total efficiency and power dissipation vs. V_IN and
I_OUT, V_OUT = 20V, T_CASE = -40ºC
Power Dissipation vs. Line
Module Disabled, PC=Low
0.4
0.3
0.2
0.1
38 40 42 44 46 48 50 52 54 56 58 60
T_CASE:
Input Voltage [V]
-40 ºC
25 ºC
100 ºC
Figure 2 - Power dissipation vs. V_IN, module disabled
Efficiency & Power Dissipation
98
96
94
92
90
88
86
84
82
80
78
76
74
72
70
0
V_OUT = 48 V
0.5 1 1.5 2
T_CASE = -40 ºC
2.5 3 3.5 4
16
14
12
10
8
6
4
2
4.5
Load Current [A]
V_IN:
38
48
60
38
48
60
Figure 4 – Total efficiency and power dissipation vs. V_IN and
I_OUT, V_OUT = 48V, T_CASE = -40ºC
PRM^® Regulator
Page 9 of 23
Rev 1.2
7/2015
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