NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 5.0 Vdc/6 A Output
SRBA-06E1Ax
RoHS Compliant
Rev.B
Non-Isolated
Under-Voltage Lockout (UVLO)
Remote On/Off
High Efficiency
High Power Density
Fixed Frequency
OCP/SCP
Wide Input
Active Low/High (Option)
UL60950-1 Recognized (UL/cUL)
Wide Trim Range
Description
The Bel SRBA-06E1Ax modules are a series of non-isolated dc/dc converters that can 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 5.0 Vdc over a wide range of input voltage. 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
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
Voltage
3.3 V - 5.0 V
Vo,set+1V -14 V
4.5 V - 14 V
6 A
6 A
30.0 W
19.8 W
92%
88%
SRBA-06E1AL
SRBA-06E1AL
SRBA-06E1A0
SRBA-06E1A0
0.75 V - 3.3 V
Notes: 1. Add “G” suffix at the end of the model numbers to indicate Tray Packaging.
2. 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
Ambient Temperature
-0.3 V
-40 C
-55 C
-
-
-
15 V
85 C
125 C
Storage Temperature
Note: All specifications are typical at 25 C unless otherwise stated.
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
Vo, set≤3.3 V
Vo, set>3.3 V
4.5 V
Vo,set + 1V
12 V
12 V
14 V
14 V
Input Current (full load)
Vo=5.0 V
Vo=3.3 V
Vo=1.8 V
Vo=0.75 V
-
-
-
-
2.75 A
1.85 A
1.05 A
0.55 A
4.8 A
4.8 A
3.2 A
1.8 A
Input Current (no load)
Vo=5.0 V
Vo=0.75 V
-
-
-
-
100 mA
20 mA
Remote Off Input Current
-
3 mA
5 mA
Tested with two 100 uF/25 V input
Tantalum capacitors & simulated
source impedance of 1uH, 5 Hz to 20
MHz.
Input Reflected Ripple Current (pk-pk)
-
120 mA
200 mA
Input Reflected Ripple Current (rms)
-
60 mA
100 mA
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com