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

12 Vdc Input

0.9 Vdc - 3.3 Vdc/7 A Output

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

85%

83%

80%

78%

75%

71%

88%

86%

83%

81%

78%

74%

-

-

-

-

-

-

Measured at Vin=12 V, full load and

Ta=25

°C

Switching Frequency

250 kHz

300 kHz

350 kHz

Output Trim Range (wide trim)

-

-

403% Vo

Output Trim Range (narrow trim)

90% Vo

-

-

-

110% Vo

110% Vo

MTBF

8,202,646 hours

Calculated Per Bell Core SR-332

25

°C)

Dimensions (surface mount)

Inches (L × W × H)

Millimeters (L × W × H)

0.78 x 0.70 x 0.32

19.81 x 17.78 x 8.13

Dimensions (vertical)

Inches (L × W × H)

Millimeters (L × W × H)

0.70 x 0.308 x 0.65

17.78 x 7.82 x 16.51

Weight

-

5 g

-

Control Specifications

Parameter

Min

Typ

Max

Notes

Remote On/Off

Signal Low (Unit Off)

-0.3 V

-

1 V

Signal High (Unit On)

3.5 V

-

14 V

Remote on/off pin open, unit on.

Output Trim Equations

Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output

voltage of the converter (Vnom) are shown below. The Trim Up resistor should be connected between the Trim

pin and Ground.

05

.

1

06

.

6

−

−

=

nom

adj

trimup

V

V

R

Note:

Module

Vout

Trim

GND

Rtrimup