Not Recommended for New Designs
V048x320y009A
ROUT vs. TCASE at VIN = 48 V
Efficiency & Power Dissipation 100°C Case
150
126
102
78
98
96
94
92
90
88
86
84
82
80
27
24
21
18
15
12
9
6
54
PD
3
30
0
-40
-20
0
20
40
60
80
100
0
1
2
3
4
5
6
7
8
9
10
Case Temperature (C)
Load Current (A)
Full Load
26 V
48 V
55 V
26 V
48 V
55 V
VIN:
Figure 5 — Efficiency and power dissipation at 100°C
Figure 6 — ROUT vs. temperature
Output Voltage Ripple vs. Load
Safe Operating Area
400
16
14
12
10
8
350
300
250
200
150
100
50
10ms Max
Continuous
6
4
2
0
0
1
2
:
3
4
5
6
7
8
9
10
0
4
8
12
16
20
24
28
32
36
40
Load Current (A)
Output Voltage (V)
VIN
26 V
48 V
55 V
Figure 7 — VRIPPLE vs. IOUT ; No external COUT. Board mounted
Figure 8 — Safe operating area
module, scope setting : 20 MHz analog BW
Figure 10 — Start up from application of VIN;
Figure 9 — Full load ripple, 100 µF CIN; No external COUT. Board
VC pre-applied COUT = 100 µF
mounted module, scope setting : 20 MHz analog BW
VTM® Current Multiplier
Page 6 of 18
Rev 1.0
vicorpower.com
800 927.9474
01/2014