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

3.0V-5.5V Input

1.0V-3.3V/12A Output

Input Specifications (continued)

Parameter

Min

Typ

Max

Notes

Input Reflected Ripple Current (pk-pk)

-

260mA

320mA

Input Reflected Ripple Current (RMS)

-

75mA

120mA

With simulated source impedance of

500nH, 5Hz to 20MHz; use a

270uF/6.3V cap with ESR=0.03 ohm

max at 100KHz

I

-

0.09A

Turn on Voltage Threshold

2.1V

-

Turn off Voltage Threshold

-

2V

2.4V

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

3.234V

2.450V

1.764V

1.470V

1.176V

0.980V

3.3V

2.5V

1.8V

1.5V

1.2V

1.0V

3.366V

2.550V

1.836V

1.530V

1.224V

1.020V

Test conditions:

Vin=5V, Io= 50% load

Line Regulation

-

±1mV

±4mV

Load Regulation

-

±2mV

±5mV

Regulation Over Temperature (-40

°C to +85°C)

-

-

-

-

-

-

±10mV

±9mV

±7mV

±6mV

±5mV

±4mV

±15mV

±13mV

±12mV

±11mV

±10mV

±9mV

Output Current

0A

-

12A

Current Limit Threshold

20A

-

30A

Short Circuit Surge Transient

-

0.3A

0.6A

Ripple and Noise (RMS)

-

12mV

21mV

Ripple and Noise (pk-pk)

-

50mV

90mV

Test conditions:

0-20MHz BW; 1uF ceramic

capacitor and 330uF external

capacitor at the output.

Turn on Time

-

5mS

10mS

Overshoot at Turn on

-

0%

3%

Output Capacitance

330uF

-

4800uF

Transient Response

Overshoot

-

110mV

150mV

50% ~ 100%

Max Load

Settling Time

-

40uS

80uS

Overshoot

-

110mV

150mV

100% ~ 50%

Max Load

Settling Time

-

40uS

80uS

Overshoot

-

100mV

150mV

50% ~ 100%

Max Load

Settling Time

-

30uS

60uS

Overshoot

-

100mV

150mV

100% ~ 50%

Max Load

Settling Time

-

30uS

60uS

Overshoot

-

90mV

130mV

50% ~ 100%

Max Load

Settling Time

-

20uS

40uS

Overshoot

-

90mV

130mV

100% ~ 50%

Max Load

Settling Time

1.8V

-

20uS

40uS

Test conditions:

di/dt=0.5A/us, Vin=5V, with

330uF external load

capacitance.

Note: