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

12V Input

0.9V-5.0V/20A Output

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency (Current Source)

Vo=5.0V

Vo=3.3V

Vo=2.5V

Vo=0.9V

89%

86%

83%

65%

92%

89%

86%

69%

-

-

-

-

Efficiency (Current Sink)

Vo=2.5V

Vo=0.9V

79%

60%

82%

63%

-

-

Measured at Vin=12V, full load.

Switching Frequency

240KHz

275KHz

310KHz

Output Voltage Trim Range

0.9V

-

5.0V

Vo=0.9V when the Trim pin is open.

MTBF

5,570,000 hours

°C)

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

1.2 x 1.1 x 0.457

30.48 x 27.94 x 11.6

V7PF-20A1A0

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

1.2 x 1.1 x 0.508

30.48 x 27.94 x 12.91

07PF-20A1A0

Weight

-

15g

-

Note

Control Specifications

Parameter

Min

Typ

Max

Notes

Remote On/Off

Signal Low (Unit Off)

-0.3V

-

0.8V

Signal High (Unit On)

2.4V

-

13.8V

Remote On/Off pin open, unit on.

Power Good

Power Good Delay

1

-

-

8mS

Note

1. the power good signal is an open collector output. When the output of the module reaches 90% of the

nominal set point, the power good pin is set high.

Output Trim Equations

Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The

Trim Up resistor should be connected between the Trim pin and Ground. Trim values should not be less than

280Ω.

9

.

0

17

.

1

−

=

adj

trim

V

R

Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The

Trim Up voltage should be connected between the Trim pin and Ground.

)

9

.

0

(

17

.

1

)

17

.

1

3

.

1

(

−

×

−

−

×

=

adj

V

Rs

Vt

Rs

Rt

Rtrim

Module

Vout

GND

Trim

Vt

Module

Vout

GND

Trim

Rt

Rs