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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
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
Non-Isolated
Under-Voltage Lockout (UVLO)
High Efficiency
OCP/SCP
High Power Density
Wide Input Range
Fixed Frequency
Wide Trim Range
Remote On/Off
Active Low/High (Option)
Flexible Output Voltage Sequencing
Description
The Bel VRBA-06A2Ax modules are a series of non-isolated dc/dc converters that deliver up to 6 A of output
current with full load efficiency of 92% at 5.0 Vdc output. These modules provide precisely regulated voltage
programmable via external resistor from 0.75 Vdc to 5.5 Vdc over a wide range of input voltage (8.3 Vdc - 14
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. The open-frame construction and small
footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off,
over current protection, short current protection, wide input, and programmable output voltage.
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 - 5.5 V
8.3 V - 14 V
6 A
33 W
92%
VRBA-06A2AL
VRBA-06A2A0
Notes:
1.Change the last character “L” to “C” to indicate 0.20’’ pin length.
2. Add “G” suffix at the end of the model number to indicate Tray Packaging.
3. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
15 V
Output Enable Terminal Voltage
-0.3 V
-
15 V
Sequencing Voltage
1
-0.3 V
-
Vin
Ambient Temperature
-40
°C
-
85
°C
Storage Temperature
-55
°C
-
125
°C
Notes
: All specifications are typical at 25
°C unless otherwise stated.
1. VRBA-06A2Ax 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.
VRBA-06A2Ax
RoHS Compliant
Rev.A