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NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/10 A Output
SRBC-10F2Ax
RoHS Compliant
Rev.A
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Non-Isolated
High Efficiency
High Power Density
Fixed Frequency(300 kHz)
OCP/SCP
Flexible Output Voltage
Sequencing
Remote Sense
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Under-Voltage Lockout (UVLO)
Over Temperature Protection
Wide Input Range
Wide Trim Range
Remote On/Off
Converter Can Sink and Source
Current
Active Low/High (Option)
Description
The Bel SRBC-10F2Ax modules are a series of non-isolated dc/dc converters that deliver up to 10 A of output
current with full load efficiency of 95% 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. The open-frame construction and small
footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off,
remote sense, 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 - 3.63 V
1
2.4 V - 5.5 V
10 A
36.3 W
95%
SRBC-10F2AL
SRBC-10F2A0
Notes : 1. These modules use a buck topology, so the output voltages must be 0.5 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. SRBC-10F2Ax 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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