Bel Fuse Inc.

206 Van Vorst Street, Jersey City, NJ 07302

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

NON-ISOLATED DC/DC CONVERTERS

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/10 A Output

Mar. 19, 2010

Bel Power Inc., a subsidiary of Bel Fuse Inc.

Absolute Maximum Ratings

Parameter

Min

Typ

Max

Notes

Input Voltage (continuous)

-0.3 V

-

5.8 V

Output Enable Terminal Voltage

-0.3 V

-

5.8 V

Sequencing Voltage

1

-0.3 V

-

Vin

Ambient Temperature

-40

°C

-

85

°C

Storage Temperature

-55

°C

-

125

°C

Notes

1. VRBC-10F2Ax series of modules include a sequencing feature that enables users to implement

various types of output voltage sequencing in their applications. This is accomplished via an

additional sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin or leave

the SEQ pin floating.

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

2.4 V

-

5.5 V

Vo, set

Input Current (full load)

Vo=3.3 V

Vo=1.8 V

Vo=0.75 V

-

-

-

7.0 A

4.04 A

1.89 A

8.06 A

6.98 A

4.06 A

Input Current (no load)

-

80 mA

-

Remote Off Input Current

-

15 mA

22 mA

Input Reflected Ripple Current (pk-pk)

-

120 mA

-

Input Reflected Ripple Current (rms)

-

35 mA

-

Tested with two 100uF/10V tantalum input

capacitors (P/N: TPSC107K010R0075

AVX) & simulated source impedance of 1

uH, 5Hz to 20MHz.

I

-

-

0.2 A

Turn-on Voltage Threshold

-

2.2 V

-

Turn-off Voltage Threshold

-

2.0 V

-

Note

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2%Vo,set

-

2%Vo,set

Vin=5 V, lo=lomax full load

Output Voltage Set Point

-3%Vo,set

-

3%Vo,set

Over all operating input

voltages, resistive loads and

temperature conditions

Load Regulation

-

0.4%Vo,set

-

Io=Iomin to Iomax

Line Regulation

-

0.3%Vo,set

-

Vin=Vinmin to Vinmax

Regulation Over Temperature

(-40

°C to +85 °C)

-

0.5%Vo,set

-

Tref=Tamin to Tamax

Output Current

0 A

-

10 A

Current Limit Threshold

15 A

-

30 A