ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2-2.5 Vdc/80 A, 3.3 Vdc/70 A, 5 Vdc/48 A, 12 Vdc/20 A Output
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
36 V
48 V
75 V
Input Current (full load)
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
-
-
-
-
-
-
-
-
-
-
-
-
-
-
7.5 A
7.5 A
7.3 A
6.4 A
4.7 A
4.0 A
3.3 A
Input Current (no load)
-
120 mA
5 mA
180 mA
10 mA
Remote Off Input Current
Tested with simulated source impedance
of 10 uH, 5 Hz to 20 MHz; use a
Input Reflected Ripple Current (pk-pk)
-
20 mA
40 mA
100 uF/100 V electrolytic capacitor with
ESR = 1 ohm max. at 200 kHz at 25 °C.
Input Reflected Ripple Current (rms)
I2t Inrush Current Transient
-
-
5 mA
10 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=12.0 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
11.760 V
4.925 V
3.250 V
2.462 V
1.773 V
1.477 V
1.176 V
12.000 V
5.000 V
3.300 V
2.500 V
1.800 V
1.500 V
1.200 V
12.240 V
5.075 V
3.350 V
2.538 V
1.827 V
1.523 V
1.224 V
Vin=48 V, Io=50% full
load, Ta=25 °C.
Line Regulation
±12 mV
±5 mV
±3 mV
±3 mV
±24 mV
±10 mV
±7 mV
±6 mV
VO=12.0 V
VO=5.0 V
VO=3.3 V
-
-
-
-
Vo=1.2 V - 2.5 V
Load Regulation
±30 mV
±10 mV
±7 mV
±6 mV
±5 mV
±4 mV
±3 mV
±60 mV
±20 mV
±15 mV
±13 mV
±9 mV
±8 mV
±6 mV
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
-
-
-
-
-
-
-
Regulation Over Temperature (-40 °C to +85 °C)
±60 mV
±45 mV
±30 mV
±25 mV
±20 mV
±20 mV
±15 mV
±100 mV
±75 mV
±50 mV
±45 mV
±40 mV
±35 mV
±30 mV
-
-
-
-
-
-
-
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
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com