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

3.0 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/6 A Output

Input Specifications (continued)

Parameter

Min

Typ

Max

Notes

Input Current (no load)

Vo=3.3 V

Vo=0.75 V

-

-

100 mA

50 mA

-

-

Remote Off Input Current

-

10 mA

-

Input Reflected Ripple Current (pk-pk)

-

120 mA

-

Input Reflected Ripple Current (rms)

-

35 mA

-

Tested with simulated source

impedance of 1uH, 5 Hz to 20 MHz.

I

-

-

0.04 A

Turn-on Voltage Threshold

-

2.7 V

3.0 V

Turn-off Voltage Threshold

1.8 V

2.6 V

-

Note

: All specifications are typical at 25

°C unless otherwise stated.

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2%Vo,set

-

2%Vo,set

Vin=5 V, 50% full load

Output Voltage Set Point

-3%Vo,set

-

3%Vo,set

Over all operating input voltages,

resistive loads and temperature

conditions

Adjustment Range

0.7525 V

-

3.63 V

Selected by external resistor or

voltage

Load Regulation

-

0.4%Vo,set

-

Io=Iomin to 50% Iomax

Line Regulation

-

0.3%Vo,set

-

Vin=Vinmin to Vinmax

Temperature Regulation

-

0.4%Vo, set

-

Tref=Tamin to Tamax

Output Current

0 A

-

6 A

Current Limit Threshold

9 A

-

18 A

Short Circuit Surge Transient

-

0.32 A

-

Ripple and Noise (pk-pk)

-

40 mV

70 mV

Ripple and Noise (rms)

-

10 mV

30 mV

Tested with 0-20 MHz, with

external 10 uF Tantalum

capacitor and 1 uF/10 V TDK

ceramic capacitor at the output.

Turn on Time

-

6 mS

10 mS

Overshoot at Turn on

-

-

3%Vo

External Load Capacitance

Min ESR

≥ 1mhom

Max ESR

≥ 10mhom

0 uF

0 uF

1000 uF

3000 uF

Transient Response

50% ~ 100% Max Load

-

150 mV

-

Settling Time

-

25 uS

-

100% ~ 50% Max Load

-

150 mV

-

Settling Time

3.63 V

-

25 uS

-

Test conditions:

di/dt=2.5 A/ uS; Vin=5 V; with

external 10 uF Tantalum

capacitor and 1 uF/10 V TDK

ceramic capacitor at the output.

Note