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

4.5 Vdc - 14 Vdc Input

0.75 Vdc - 3.63 Vdc/10 A Output

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

Vo,set

< 3.0 V

Vo,set

≥ 3.0 V

4.5 V

Vo,set+1.5 V

-

-

14 V

14 V

Input Current (full load)

-

-

8.6 A

An input line fuse must always be used.

Input Current (no load)

-

40 mA

-

Remote Off Input Current

-

2 mA

-

Input Reflected Ripple Current

(pk-pk)

-

-

400 mA

Input Reflected Ripple Current

(rms)

-

-

150 mA

Tested with one 1000 uF/25 V AL input

capacitor with ESR=0.03 ohm max and

4 × 47 uF/16 V Tantalum capacitors

with ESR=0.013 ohm max at 100 kHz,

& simulated source impedance of 1000

nH, 5 Hz to 20 MHz.

I

-

0.2 A

0.4 A

Turn-on Voltage Threshold

-

4.3 V

-

Turn-off Voltage Threshold

-

4.0 V

-

Note

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2% Vo,set

-

2% Vo,set

Vin=5 V & 12 V, full load

Load Regulation

-

0.1% Vo,set

-

Line Regulation

-

0.1% Vo,set

-

Regulation Over Temperature

(-40

°C to +85°C)

-

0.3Vo,set

-

Tref=Tamin to Tamax

Output Current

0 A

-

10 A

Current Limit Threshold

-

200% Iout

-

Short Circuit Surge Transient

-

1 A

3 A

Ripple and Noise (pk-pk)

-

30 mV

80 mV

Ripple and Noise (rms)

-

12 mV

35 mV

Tested with 0-20 MHz, with 10 uF

tantalum capacitor & 1 uF ceramic

capacitor at the output

Turn on Time

-

8 mS

20 mS

Overshoot at Turn on

-

0%

1%

Output Capacitance

0 uF

-

5600 uF

Transient Response

50% ~ 100% Max Load

-

160 mV

-

Settling Time

-

50 uS

-

100% ~ 50% Max Load

-

160 mV

-

Settling Time

3.63 V

-

50 uS

-

di/dt=2.5 A/uS; Vin=5 V & 12 V;

and with 470 uF Tantalum

capacitor at the output

Note