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

2.4 V - 5.5 V Input

0.75 V - 3.63 V/6 A Output

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

Vo=3.3 V

Vo=2.5 V

Vo=1.8 V

Vo=1.5 V

Vo=1.2 V

Vo=0.75 V

-

-

-

-

-

-

93%

91%

88%

87%

84%

78%

-

-

-

-

-

-

Measured at Vin=5 V, full load

Switching Frequency

250 kHz

300 kHz

350 kHz

Over Temperature Shutdown

-

135

°C

-

Output Voltage Trim Range

0.7525 V

-

3.63 V

MTBF

7,142,646 hours

Calculated Per Bell Core SR-332 (Vin=5 V;

°C)

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

1.0 x 0.5 x 0.243

25.4 x 12.7 x 6.16

Weight

-

5 g

-

Note

Control Specifications

Parameter

Min

Typ

Max

Notes

Remote On/Off

Signal Low (Unit Off)

-0.2 V

-

0.3 V

Signal High (Unit On)

-

-

Vin, max

VRBA-06F2A0; Remote On/Off pin open, Unit

on.

Signal Low (Unit On)

-0.2 V

-

0.3 V

Signal High (Unit Off)

1.5 V

-

Vin, max

VRBA-06F2AL; Remote On/Off pin open, Unit

on.

Sequencing Voltage

0 V

-

Vin

Sequencing Voltage applied on SEQ pin

should be higher than output voltage.

Sequencing Slew Rate Capability

-

-

2 V/mS

Sequencing Delay Time

10 mS

-

-

Delay from Vin, min to application of voltage

on SEQ pin

Tracking Accuracy

Power-Up

Power-Down

-

-

100 mV

200 mV

200 mV

400 mV

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.

11

.

5

7525

.

0

07

.

21

−

−

=

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.

)

7525

.

0

(

1698

.

0

7

.

0

−

×

−

=

adj

trim

V

V

Rtrim

Module

Vout

GND

Trim

Vtrim

Module

Vout

GND

Trim