
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 - 13.2 Vdc Input
0.9 Vdc - 5.0 Vdc/3 A Output
Non-Isolated
Trim Function
Low Profile Package (7.82 mm)
UL60950-1 Recognized (UL/cUL)
Description
The Bel xRAH-03Exx0 is part of the low cost non-isolated dc/dc converter Power Module series. The modules use
a SMD or SIP package for ease of layout and space savings. The output is closely regulated and the efficiency of
3.3 Vdc output module is typically 93% at full load.
Part Selection
Output
Voltage
Current
Power
5.0 Vdc
8.0 Vdc - 13.2 Vdc
3 A
15 W
3.3 Vdc
4.5 Vdc - 13.2 Vdc
9.9 W
2.5 Vdc
4.5 Vdc - 13.2 Vdc
7.5 W
1.8 Vdc
4.5 Vdc - 13.2 Vdc
3 A
5.4 W
1.5 Vdc
4.5 Vdc - 13.2 Vdc
4.5 W
1.2 Vdc
4.5 Vdc - 13.2 Vdc
3 A
3.6 W
1.0 Vdc
4.5 Vdc - 13.2 Vdc
3 A
3 W
0.9 Vdc
4.5 Vdc - 13.2 Vdc
3 A
2.7 W
Notes:
1. Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel
Packaging”, and “G” for “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
Input Voltage (continuous)
-0.3 V
-
Output Enable Terminal Voltage
-0.3 V
-
Ambient Temperature
0
°
C
-
Storage Temperature
-40
°
C
-
Input Specifications
Parameter
Min
Typ
Remote On/Off
OCP/SCP
Under-Voltage Lockout (UVLO)
Input Voltage
Max. Output
Max. Output
Typical
Efficiency
95%
93%
91%
88%
87%
85%
84%
82%
Part Number
Surface Mount
SRAH-03E500
SRAH-03E330
SRAH-03E250
SRAH-03E180
SRAH-03E150
SRAH-03E120
SRAH-03E100
SRAH-03E090
Part Number
Vertical Mount
VRAH-03E500
VRAH-03E330
VRAH-03E250
VRAH-03E180
VRAH-03E150
VRAH-03E120
VRAH-03E100
VRAH-03E090
3 A
3 A
3 A
Max
14 V
13.2 V
70
°
C
100
°
C
Notes
Max
Notes
Input Voltage
4.5 V
-
13.2 V
Min. input voltage for 5.0 V output module
should be 8.0 V
With simulated source impedance of
500 nH, 5 Hz to 20 MHz; Use two
270 uF/16 V Oscon capacitors with ESR =
0.018 ohm max. at 100 kHz at 25
°
C
Input Current (no load)
Input Current (full load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(rms)
I
2
t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
-
30 mA
-
4 mA
-
3 A
-
-
75 mA
150 mA
-
30 mA
60 mA
-
-
-
0.02 A
2
s
4.1 V
3.3 V
0.08 A
2
s
4.5 V
4.0 V
Not applicable for 5.0 V output.
xRAH-03Exx0 Series RoHS Compliant Rev.A