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

2.4V-5.5V Input

0.75V-3.63V/6A Output

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

2.4V

-

5.5V

Vo, set

Input Current (full load)

Vo=3.3V

Vo=2.5V

Vo=1.8V

Vo=1.5V

Vo=1.2V

Vo=0.75V

-

-

-

-

-

-

-

-

-

-

-

-

4.73A

5.49A

5.11A

4.31A

3.57A

2.40A

Input Current (no load)

Vo=3.3V

Vo=0.75V

-

-

50mA

25mA

-

-

Remote Off Input Current

-

0.6mA

-

Input Reflected Ripple Current (pk-pk)

-

120mA

-

Input Reflected Ripple Current (RMS)

-

35mA

-

Tested with simulated source

impedance of 1uH, 5Hz to 20MHz.

I

-

-

0.04A

Turn-on Voltage Threshold

-

2.05V

2.4V

Turn-off Voltage Threshold

1.8V

2.0V

-

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2%Vo,set

-

2%Vo,set

Vin=5V, 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 Selected by

External Resistor or Voltage

0.7525V

-

3.63V

Load Regulation

-

0.4%Vo,set

-

Io=0%~50% full load;

Io=50%~100% full load

Line Regulation

-

0.3%Vo,set

-

Vin=Vin, min to Vin, max

Regulation Over Temperature

(-40

°C to +85°C)

-

0.4%Vo,set

-

Tref=Ta, min to Ta, max

Output Current

0A

-

6A

Current Limit Threshold

9A

-

18A

Hiccup mode

Short Circuit Surge Transient

-

0.32A

-

Ripple and Noise (pk-pk)

-

40mV

70mV

Ripple and Noise (RMS)

-

10mV

30mV

Tested with 0-20MHz, with

10uF tantalum capacitor &

1uF/10V ceramic capacitor

at output

Turn on Time

-

6mS

10mS

Overshoot at Turn on

-

0%

3%

Output Capacitance

ESR

≥ 1mohm

ESR

≥ 10mohm

0uF

0uF

-

-

1000uF

3000uF

Transient Response

50% ~ 100% Max Load

-

130mV

-

Settling Time

-

25uS

-

100% ~ 50% Max Load

-

130mV

-

Settling Time

3.63V

-

25uS

-

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

with 10uF tantalum capacitor

& 1uF/10V TDK ceramic

capacitor at output

Note