Bel Fuse Inc.

206 Van Vorst Street, Jersey City, NJ 07302

• Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

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)

-

-

-

-

-

-

-

-

-

-

-

-

-

-

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

180 mA

Remote Off Input Current

10 mA

15 mA

Input Reflected Ripple Current (pk-pk)

-

10 mA

15 mA

Input Reflected Ripple Current (rms)

-

1.5 mA

3 mA

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.

I

-

0.05 A

Turn-on Voltage Threshold

32 V

34 V

35 V

Turn-off Voltage Threshold

30 V

32 V

34 V

Input over voltage

Lockout

76 V

78 V

80 V

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

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

Load Regulation

-

-

-

±10 mV

±5 mV

±2 mV

±20 mV

±10 mV

±5 mV

Regulation Over Temperature

(-40

°C to +85 °C)

-

-

-

-

-

±60 mV

±40 mV

±30 mV

±20 mV

±15 mV

±100 mV

±65 mV

±50 mV

±40 mV

±30 mV

Output Current

Vo=12 V

Vo=5.0 V

Vo=3.3 V

Vo=1.2 V-2.5 V

0 A

0 A

0 A

0 A

-

-

-

-

12 A

30 A

46 A

50 A