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NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16 A Output
VRBC-16F2Ax
RoHS Compliant
Rev.A
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Non-Isolated
High Efficiency
High Power Density
OCP/SCP
Fixed Frequency (300 kHz)
Flexible Output Voltage
Sequencing
Remote On/Off
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Under-voltage Lockout (UVLO)
Over Temperature Protection
Remote Sense
Wide Input
Wide Trim
Converter can sink and source
Current
Active Low/High (Option)
Description
The Bel VRBC-16F2Ax modules are a series of non-isolated dc/dc converters that can deliver up to 16 A of output
current with full load efficiency of 94% at 3.3 Vdc output. These modules provide precisely regulated voltage
programmable via external resistor from 0.75 Vdc to 3.63 Vdc over a wide range of input voltage (2.4 Vdc - 5.5
Vdc). These modules have a sequencing feature that enables designers to implement various types of output
voltage sequencing when powering multiple voltages on a board. Their open-frame construction and small
footprint enable designers to develop cost and space-efficient solutions. Standard features include remote
ON/OFF, programmable output voltage and over current protection.
Part Selection
Output
Voltage
Input
Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
0.75 V -3.63 V
1
2.4 V -5.5 V
16 A
58.1 W
94%
VRBC-16F2AL
VRBC-16F2A0
Notes : 1. These modules use a buck topology, so the output voltages must be 0.8 V less than the input voltage.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
3. Add “G” to the end of the Model Number to indicate Tray Packaging.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Output Enable Terminal Voltage
Min
-0.3 V
-0.3 V
Typ
-
-
Max
5.8 V
5.8 V
Notes
Sequencing Voltage
1
-0.3 V
-
Vin
Ambient Temperature
Storage Temperature
-40 ° C
-55 ° C
-
-
85 ° C
125 ° C
Notes : All specifications are typical at 25 ° C unless otherwise stated.
1. VRBC-16F2Ax series of modules include a sequencing feature that enables users to implement various
types of output voltage sequencing in their applications. This is accomplished via an additional
sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin or leave the SEQ pin
floating.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? www.belfuse.com
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