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

4.5V-14V Input

0.75V-5.0V/6A Output

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

Vo, set

≤ 3.3V

Vo, set = 5.0V

4.5V

7.0V

12V

12V

14V

14V

Input Current (full load)

Vo=5.0V

Vo=3.3V

Vo=1.8V

Vo=0.75V

-

-

-

-

2.75A

1.85A

1.05A

0.55A

4.8A

4.8A

3.2A

1.8A

Input Current (no load)

Vo=5.0V

Vo=0.75V

-

-

-

-

100mA

20mA

Remote Off Input Current

-

3mA

5mA

Input Reflected Ripple Current (pk-pk)

-

120mA

200mA

Input Reflected Ripple Current (RMS)

-

60mA

100mA

Tested with two 100uF/25V input

Tantalum capacitors & simulated source

impedance of 1uH, 5Hz to 20MHz.

I

-

0.002A

0.02A

Turn-on Voltage Threshold

Vo, set

≤ 3.3V

Vo, set = 5.0V

-

-

4.3V

6.0V

4.5V

6.5V

Turn-off Voltage Threshold

Vo, set

≤ 3.3V

Vo, set = 5.0V

-

-

4.0V

5.5V

4.3V

6.0V

Shut down or below 90% set point.

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2%Vo,set

-

2%Vo,set

Vin=12V, full load

Output Voltage Set Point

1

-2.5%Vo,set

-

3.5%Vo,set

Load Regulation

-0.7%Vo,set

0.4%Vo,set

0.7%Vo,set

Io=Io, min to Io, max

Line Regulation

-0.7%Vo,set

0.3%Vo,set

0.7%Vo,set

Vin=Vin, min to Vin, max

Regulation Over Temperature

(-40

°C to +85°C)

-

0.5%Vo,set

-

Tref=Ta, min to Ta, max

Output Current

0A

-

6A

Current Limit Threshold

6.8A

-

15A

Short Circuit Surge Transient

-

0.25A

-

Ripple and Noise (pk-pk)

Vo=5.0V

Vo=3.3V

Vo=0.75V

-

-

-

100mV

80mV

35mV

140mV

120mV

70mV

Ripple and Noise (RMS)

Vo=5.0V

Vo=3.3V

Vo=0.75V

-

-

-

35mV

25mV

10mV

50mV

40mV

15mV

Tested with 0-20MHz, with

10uF/10V tantalum capacitor &

1uF/10V ceramic capacitor at the

output

Turn on Time

-

6mS

12mS

Overshoot at Turn on

-

0%

3%

Output Capacitance

ESR

≥ 1mohm

ESR

≥ 10mohm

0uF

0uF

-

-

1000uF

2200uF

Transient Response

50% ~ 100% Max Load

-

200mV

350mV

Settling Time

-

25uS

50uS

100% ~ 50% Max Load

-

200mV

350mV

Settling Time

-5.0V

-

25uS

50uS

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

10uF/10V tantalum capacitor &

1uF/10V ceramic capacitor at the

output.

Notes

1. Over all operating input voltages, resistive loads and temperature conditions.