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

3.3 Vdc Input

0.9 Vdc - 2.5 Vdc/12 A Output

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

Vo=2.5 V

Vo=1.8 V

Vo=1.5 V

Vo=1.2 V

Vo=1.0 V

Vo=0.9 V

2.450 V

1.764 V

1.470 V

1.176 V

0.980 V

0.882 V

2.500 V

1.800 V

1.500 V

1.200 V

1.000 V

0.900 V

2.550 V

1.836 V

1.530 V

1.224 V

1.020 V

0.918 V

Vin=3.3 V, full load.

Line Regulation

-

2 mV

5 mV

Load Regulation

-

4 mV

8 mV

Regulation Over Temperature

(-40

°C to +85 °C)

Vo=2.5 V

Vo=1.8 V

Vo=1.5 V

Vo=1.2 V

Vo=1.0 V

Vo=0.9 V

-

-

-

-

-

-

19 mV

13 mV

11 mV

9 mV

6 mV

5 mV

38 mV

26 mV

22 mV

18 mV

12 mV

10 mV

Output Current

0 A

-

12 A

Current Limit Threshold

15.6 A

-

30 A

Ripple and Noise (rms)

-

10 mV

25 mV

Ripple and Noise (pk-pk)

Vo=2.5 V

Vo=1.8 V

Vo=1.5 V

Vo=1.2 V

Vo=1.0 V

Vo=0.9 V

-

-

-

-

-

-

35 mV

40 mV

40 mV

40 mV

35 mV

35 mV

75 mV

80 mV

80 mV

80 mV

75 mV

75 mV

Test conditions:

0-20 MHz BW; 1 uFceramic

capacitor & 10 uF aluminum

capacitor at the output.

Short Circuit Surge Transient

-

0.2 A

0.4 A

Turn on Time

-

10 mS

20 mS

Overshoot at Turn on

-

0%

3%

Output Capacitance

0 uF

4800 uF

Transient Response

Overshoot

-

100 mV

140 mV

50% ~ 100%

Max Load

Settling Time

-

50 uS

100 uS

Overshoot

-

100 mV

140 mV

100% ~ 50%

Max Load

Settling Time

-

50 uS

100 uS

Overshoot

-

90 mV

130 mV

50% ~ 100%

Max Load

Settling Time

-

50 uS

100 uS

Overshoot

-

90 mV

130 mV

100% ~ 50%

Max Load

Settling Time

-

50 uS

100 uS

Test conditions:

di/dt=0.5 A/uS,

Vin=3.3 V, with a

470 uF (ESR=0.9

ohm) tantalum

capacitor at the

output.

Note:

All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.