NON-ISOLATED DC/DC CONVERTERS
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.5 Vdc/6 A Output
VRBA-06A2Ax
RoHS Compliant
Rev.A
•
•
•
•
•
•
Non-Isolated
•
•
•
•
•
Under-Voltage Lockout (UVLO)
High Efficiency
OCP/SCP
High Power Density
Fixed Frequency
Remote On/Off
Wide Input Range
Wide Trim Range
Flexible Output Voltage Sequencing
Active Low/High (Option)
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
Input
Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
Voltage
Current
Power
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
Sequencing Voltage 1
-0.3 V
-0.3 V
-40 °C
-55 °C
-
-
-
-
15 V
Vin
Ambient Temperature
85 °C
125 °C
Storage Temperature
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.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com