NON-ISOLATED DC/DC CONVERTERS
2.4 V-5.5 V Input
0.75 V-3.63 V/6 A Output
SRBA-06F2Ax Series
RoHS Compliant
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Non-Isolated
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Under-voltage Lockout (UVLO)
OCP/SCP
High Efficiency
High Power Density
Excellent Thermal Performance
Low Cost
Wide Input
Wide Trim Range
Active Low/High (option)
Able to Sink & Source Current
Fixed Frequency (300 kHz)
Remote On/Off
Flexible Output Voltage
Sequencing
Description
The Bel SRBA-06F2Ax modules are a series of non-isolated dc-dc converters that deliver up to 6 A of output
current with full load efficiency of 93% at 3.3 V output. These modules provide precisely regulated voltage
programmable via external resistor from 0.75 V to 3.63 V over a wide range of input voltage (2.4 V-5.5 V).
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 circuit protection, wide input, and programmable output voltage.
Part Selection
Output Voltage
Input
Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
Current
Power
0.75 V - 3.63 V 1 2.4 V - 5.5 V
6 A
21.8 W
93%
SRBA-06F2AL
SRBA-06F2A0
Notes: 1. These modules use a buck topology, so the output voltages must be 0.5 V less than the input voltage.
2. Add “G” to the end of the Model Number to indicate Tray Packaging.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
5.8 V
Output Enable Terminal Voltage
Sequencing Voltage 1
-0.3 V
-0.3 V
-40 °C
-55 °C
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5.5 V
Vin
Ambient Temperature
85 °C
125 °C
Storage Temperature
Notes: All specifications are typical at 25 °C unless otherwise stated.
1. SRBA-06F2Ax 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.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com