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

2.4 Vdc - 5.5 Vdc Input

0.75 Vdc - 3.63 Vdc/10 A Output

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

2.4 V

-

5.5 V

Vo, set

Input Current (full load)

Vo=3.3 V

Vo=1.8 V

Vo=0.75 V

-

-

-

7.0 A

4.04 A

1.89 A

8.06 A

6.98 A

4.06 A

Input Current (no load)

-

80 mA

-

Remote Off Input Current

-

15 mA

22 mA

Input Reflected Ripple Current (pk-pk)

-

120 mA

-

Input Reflected Ripple Current (rms)

-

35 mA

-

Tested with two 100 uF/10 V tantalum

input capacitors (P/N:

TPSC107K010R0075 AVX) & simulated

source impedance of 1 uH, 5 Hz to

20MHz.

I

-

-

0.2 A

Turn-on Voltage Threshold

-

2.2 V

-

Turn-off Voltage Threshold

-

2.0 V

-

Note

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

-2%Vo,set

-

2%Vo,set

Vin=5 V, lo=lomax full load

Output Voltage Set Point

-3%Vo,set

-

3%Vo,set

Over all operating input

voltages, resistive loads and

temperature conditions

Load Regulation

-

0.4%Vo,set

-

Io=Iomin to Iomax

Line Regulation

-

0.3%Vo,set

-

Vin=Vinmin to Vinmax

Regulation Over Temperature

(-40

°C to +85 °C)

-

0.5%Vo,set

-

Tref=Tamin to Tamax

Output Current

0 A

-

10 A

Current Limit Threshold

15 A

-

30 A

Short Circuit Surge Transient

-

-

2 A

Ripple and Noise (pk-pk)

-

25 mV

50 mV

Ripple and Noise (rms)

-

8 mV

15 mV

Tested with 0-20MHz,

10uF/16V tantalum capacitor &

1uF/10V TDK ceramic

capacitor at the output

Turn on Time

-

4 mS

8 mS

Overshoot at Turn on

-

0%Vo,set

3%Vo,set

Output Capacitance

ESR

≥ 1mohm

ESR

≥ 10mohm

0 uF

0 uF

-

-

1000 uF

4700 uF

Transient Response

50% ~ 100% Max Load

-

200 mV

-

Settling Time

-

25 uS

-

100% ~ 50% Max Load

-

200 mV

-

Settling Time

All

-

25 uS

-

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

with 10 uF/16 V tantalum

capacitor & 1uF/10V ceramic

capacitor at the output

50% ~ 100% Max Load

-

120 mV

-

Settling Time

-

50 uS

-

100% ~ 50% Max Load

-

120 mV

-

Settling Time

All

-

50 uS

-

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

with two 150 uF/10 V tantalum

capacitors & 1 uF/10 V ceramic

capacitor at the output

Note