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/8.3 A, 5 V/20 A, 3.3 V/25 A, 1.2-2.5 V/30 A Outputs

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

18 V

48 V

75 V

Input Current (full load)

-

-

-

-

-

-

-

-

-

-

-

-

-

-

7.0 A

7.0 A

6.0 A

5.5 A

4.0 A

3.5 A

3.0 A

Input Current (no load)

-

100 mA

180 mA

Remote Off Input Current

10 mA

15 mA

Input Reflected Ripple Current (pk-pk)

-

10 mA

20 mA

Input Reflected Ripple Current (rms)

-

2 mA

5 mA

Tested with simulated source impedance

of 10 uH, 5 Hz to 20 MHz BW; 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

16.5 V

17.0 V

17.5 V

Turn-off Voltage Threshold

15.5 V

16.0 V

16.5 V

Input over voltage

Lockout

76 V

78 V

80 V

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

11.820 V

4.925 V

3.251 V

2.455 V

1.773 V

1.448 V

1.182 V

12.00 V

5.00 V

3.30 V

2.50 V

1.80 V

1.50 V

1.20 V

12.180 V

5.075 V

3.360 V

2.545 V

1.827 V

1.523 V

1.218 V

Vin=48 V, Io=50% full

load

Line Regulation

-

-

-

-

-

±24 mV

±5 mV

±4 mV

±4 mV

±3mV

±48 mV

±15 mV

±15 mV

±10 mV

±6mV

Load Regulation

-

-

-

-

±30 mV

±10mV

±8 mV

±5 mV

±60 mV

±20 mV

±15 mV

±10 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

±50 mV

±30 mV