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/16 A Output

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

Vo,set

< 3.0

Vo,set

≥ 3.0

4.5 V

Vo,set+1.5 V

-

-

14 V

14 V

Input Current (full load)

-

-

15 A

Input Current (no load)

-

100 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 6 × 47uF/16 V tan

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

3.7 V

-

4.2 V

Note

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2% Vo,set

-

2% Vo,set

Vin=12 V, full load

Load Regulation

-

0.2% Vo,set

-

Io=Iomin to Iomax

Line Regulation

-

0.3% Vo,set

-

Vin=Vinmin to Vinmax

Regulation Over Temperature

(-40

°C to +85°C)

-

0.3% Vo,set

-

Tref=Tamin to Tamax

Output Current

0 A

-

16 A

Current Limit Threshold

-

180% Io,out

-

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, 10 uF

Tantalum capacitor &1 uF TDK

ceramic capacitor at the output

Turn on Time

-

8 mS

20 mS

Overshoot at Turn on

-

-

1% Vo,set

Output Capacitance

0 uF

-

5600 uF

Transient Response

50% ~ 100% Max Load

-

100 mV

-

Settling Time

-

80 uS

-

100% ~ 50% Max Load

-

100 mV

-

Settling Time

All

-

80 uS

-

di/dt=2.5 A/uS; Vin=12 V; and

Cext=0 uF.

Note