ISOLATED DC/DC CONVERTERS
48 Vdc Input, 1.2 Vdc - 12 Vdc / 15 A - 3 A Outputs, 1/16 Brick Converter
Apr. 09, 2010
Output Specifications (continued)
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Parameter
Min
Typ
Max
Notes
Current Limit Threshold
0.5 A s
1A s
Short Circuit Surge Transient
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
18 A
14 A
14 A
11 A
10.5 A
7.5 A
3.5 A
-
24 A
20 A
19 A
16 A
15.5 A
9.5 A
4.5 A
2
30 A
26 A
24 A
21 A
25 A
14 A
6A
2
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Vo=1.2 - 2.5 V
Vo=3.3 V
Vo=5.0 - 12 V
Vo=1.2 - 2.5 V
Vo=3.3 V
Vo=5.0 V
-
-
-
-
-
-
10 mV
15 mV
30 mV
40 mV
65 mV
90 mV
20 mV
30 mV
55 mV
70 mV
110 mV
150 mV
Tested at 0-20 MHz
BW, with a 1 uF
ceramic capacitor and
a 10 uF Tantalum
capacitor at the
output.
Turn on Time
Overshoot at Turn on
Vo=12 V
-
-
-
80 mV
35 mS
0%
140 mV
70 mS
5%
Output Capacitance
Vo=1.2 - 1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
220 uF
220 uF
220 uF
0 uF
0 uF
0 uF
-
-
-
-
-
-
15000 uF
10000 uF
6800 uF
4700 uF
2200 uF
330 uF
Transient Response
25% ~ 50%
Overshoot
-
100 mV
150 mV
Max Load
50% ~ 25%
Max Load
25% ~ 50%
Max Load
50% ~ 25%
Max Load
25% ~ 50%
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Vo=1.2 V
Vo=1.5 - 1.8 V
-
-
-
-
-
-
-
-
100 uS
100 mV
100 uS
150 mV
120 uS
150 mV
120 uS
200 mV
150 uS
150 mV
150 uS
200 mV
200 uS
200 mV
200 uS
300 mV
Max Load
50% ~ 25%
Max Load
25% ~ 50%
Max Load
50% ~ 25%
Max Load
25% ~ 50%
Max Load
50% ~ 25%
Max Load
25% ~ 50%
Max Load
50% ~ 25%
Max Load
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
100 uS
200 mV
100 uS
200 mV
200 uS
200 mV
200 uS
350 mV
200 uS
350 mV
200 uS
270 mV
110 uS
270 mV
110 uS
150 uS
300 mV
150 uS
350 mV
350 uS
350 mV
350 uS
500 mV
350 uS
500 mV
350 uS
450 mV
200 uS
450 mV
200 uS
Test conditions: di/dt
= 0.1 A/uS, Vin=48 V,
with a 1uF ceramic
capacitor and a 10 uF
Tantalum capacitor at
the output.
Note: All specifications are typical at nominal input, full load at 25 ° C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? www.belfuse.com
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