ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 12 Vdc / 8.33 A - 30 A Output, 1/8 Brick
Converter
Output Specifications (continued)
Parameter
Regulation Over Temperature
(-40
C
to +85
C)
Vo=12.0 V
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Output Current
Vo=12.0 V
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Current Limit Threshold
Vo=12.0 V
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Short Circuit Surge Transient
Ripple and Noise (rms)
V
O
=12.0 V
V
O
=5.0 V
V
O
=1.2 V-3.3 V
Ripple and Noise (pk-pk)
V
O
=12.0 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=1.2 V-2.5 V
Turn on Time
Overshoot at Turn on
Output Capacitance
V
O
=12.0 V
V
O
=5.0 V
V
O
=1.2 V- 3.3 V
Transient Response
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 25%
Max Load
Settling Time
-
-
-
-
-
-
0 uF
0 uF
0 uF
-
-
-
-
-
-
-
-
-
-
-
-
100 mV
80 mV
45 mV
40 mV
-
0%
-
-
-
300 mV
200 uS
300 mV
200 uS
200 mV
200 uS
200 mV
200 uS
150 mV
200 uS
150 mV
200 uS
150 mV
120 mV
90 mV
80 mV
30 mS
5%
1000 uF
10000 uF
20000 uF
400 mV
300 uS
400 mV
300 uS
300 mV
300 uS
300 mV
300 uS
200 mV
300 uS
200 mV
300 uS
-
-
-
30 mV
25 mV
15 mV
50 mV
50 mV
30 mV
Test conditions:
0-20 MHz BW, with a 1 uF
ceramic capacitor and a
10 uF Tantalum capacitor
at the output.
10 A
23 A
30 A
27 A
27 A
32 A
32 A
-
13 A
29 A
36 A
33 A
33 A
36 A
36 A
2
3A s
16 A
35 A
42 A
40 A
40 A
45 A
45 A
2
5A s
0A
0A
0A
0A
0A
0A
0A
-
-
-
-
-
-
-
8.33 A
20 A
25 A
25 A
25 A
30 A
30 A
Min
Typ
50
mV
50
mV
20
mV
15
mV
15
mV
10
mV
10
mV
Max
75
mV
75
mV
40
mV
30
mV
30
mV
20
mV
20
mV
Notes
-
-
-
-
-
-
-
V
O
=12.0 V
V
O
=5.0 V
Test conditions: di/dt =
0.1 A/uS, Vin=48 V,
with a 1 uF ceramic
capacitor and a 10 uF
Tantalum capacitor at
the output.
V
O
=3.3 V
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
BEL [ BEL FUSE INC. ]
