ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
36 V
48 V
75 V
Input Current (full load)
VO=12 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
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4.5 A
4.9 A
4.9 A
4.1 A
3.0 A
2.6 A
2.1 A
Input Current (no load)
-
120 mA
10 mA
180 mA
15 mA
Remote Off Input Current
Tested with simulated source impedance
of 10 uH, 5 Hz to 20 MHz; use a 100 uF
/100 V electrolytic capacitor with ESR =
1 ohm max. at 200 kHz at 25 °C.
Input Reflected Ripple Current (pk-pk)
-
10 mA
15 mA
Input Reflected Ripple Current (rms)
I2t Inrush Current Transient
-
-
1.5 mA
3 mA
0.05 A2s
0.1 A2s
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Input over voltage Lockout
32 V
30 V
76 V
34 V
32 V
78 V
35 V
34 V
80 V
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
VO=12 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
11.790 V
4.925 V
3.260 V
2.450 V
1.770 V
1.477 V
1.176 V
12.030 V
5.004 V
3.308 V
2.503 V
1.808 V
1.500 V
1.200 V
12.270 V
5.075 V
3.360 V
2.550 V
1.844 V
1.523 V
1.224 V
Vin=48 V, Io=50% full
load
Line Regulation
±8 mV
±5 mV
±3 mV
±15 mV
±15 mV
±6 mV
VO=12 V
VO=5.0 V
VO=1.2 V-3.3 V
-
-
-
Load Regulation
±10 mV
±5 mV
±2 mV
±20 mV
±10 mV
±5 mV
VO=5.0 V-12 V
VO=2.5 V-3.3 V
VO=1.2 V-1.8 V
-
-
-
Regulation Over Temperature
±60 mV
±40 mV
±30 mV
±20 mV
±15 mV
±100 mV
±65 mV
±50 mV
±40 mV
±30 mV
-
-
-
-
-
(-40 °C to +85 °C)
VO=12 V
VO=5.0 V
VO=3.3 V
VO=2.5 V
VO=1.8 V-1.2 V
Output Current
Vo=12 V
Vo=5.0 V
Vo=3.3 V
0 A
0 A
0 A
0 A
-
-
-
-
12 A
30 A
46 A
50 A
Vo=1.2 V-2.5 V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com