Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302

4

NON-ISOLATED DC/DC CONVERTERS

4.5 Vdc - 14 Vdc Input, 0.59 Vdc - 5.5 Vdc /3 A Outputs

October 8, 2009

Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.

General Specifications

Parameter

Min

Typ

Max

Unit

Notes

Efficiency

Vo=0.59V

Vo=1.2V

Vo=1.8V

Vo=2.5V

Vo=3.3V

Vo=5.0V

-

-

-

-

-

-

73.3

82.9

86.5

88.9

90.6

92.6

-

-

-

-

-

-

%

%

%

%

%

%

Vin= 12Vdc, Ta=25°C

Io=Io, max , Vo= Vo,set

Switching Frequency

-

600

-

kHz

Over Temperature Protection

-

140

-

°C

Tracking Accuracy

Power-Up: 2V/ms

Power-Down: 2V/ms

-

-

-

-

100

100

mV

mV

Vin, min to Vin, max; Io, min to Io,

max

PGOOD (Power Good)

Output Voltage Limit for PGOOD

Pulldown resistance of PGOOD pin

90

-

-

7

110

50

%Vo,set

Ω

Signal Interface Open Drain,

Vsupply

≤ 5Vdc

Weight

-

1.55

-

g

MTBF

25,017,068

hours

Calculated Per Bell Core SR-332

(Io=0.8Io, max, Ta=40°C,

Telecordia Issue 2 Method 1 Case

3)

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

0.48 x 0.48 x 0.246

12.19 x 12.19 x 6.25

-

Note: Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and

temperature conditions.