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
4.5 Vdc - 14 Vdc Input
0.75 Vdc - 3.63 Vdc/10 A Output
Non-Isolated
Wide Input
High Efficiency
Wide trim
Fixed Frequency
OCP/SCP
Remote Sense
Remote On/Off
Low Cost
Active Low/High (option)
Under-Voltage Lockout (UVLO)
Over Temperature Shutdown
Industrial Temperature Range
Description
The Bel VRBC-10E1Ax is part of the non-isolate dc/dc power converter series. The modules use a SIP package.
These converters are available in a range of output voltages from 0.75 Vdc to 3.63 Vdc over a wide range of input
voltage (Vin = 4.5 Vdc - 14 Vdc). The efficiency is typically 94.3% at 3.3 Vdc output at 5.0 Vdc input at full load.
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
4.5 V -14 V
10 A
36.3 W
94.3%
VRBC-10E1AL
VRBC-10E1A0
Notes
: 1. Add “G” suffix at the end of the model number 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
-0.3 V
-
15 V
Ambient Temperature
-40
°C
-
85
°C
Storage Temperature
-55
°C
-
125
°C
Note
: All specifications are typical at 25
°C unless otherwise stated.
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
Vo,set
< 3.0 V
Vo,set
≥ 3.0 V
4.5 V
Vo,set+1.5 V
-
14 V
Input Current (full load)
-
8.6 A
An input line fuse must always be used.
Input Current (no load)
-
40 mA
-
Remote Off Input Current
-
2 mA
-
Input Reflected Ripple Current
(pk-pk)
-
400 mA
Input Reflected Ripple Current
(rms)
-
150 mA
Tested with one 1000 uF/25V AL input
capacitor with ESR=0.03ohm max and
4 × 47 uF/16V Tantalum capacitors
with ESR=0.013 ohm max at 100 kHz,
& simulated source impedance of
1000nH, 5 Hz to 20MHz.
I
2t Inrush Current Transient
-
0.2 A
2s
0.4 A
2s
Turn-on Voltage Threshold
-
4.3 V
-
Turn-off Voltage Threshold
-
4.0 V
-
Note
: All specifications are typical at 25
°C unless otherwise stated.
VRBC-10E1Ax
RoHS Compliant
Rev.A