NON-ISOLATED DC/DC CONVERTERS
3.0 Vdc - 3.6 Vdc Input
5.0 Vdc/1.5 A Output
xRAH-02C50x
RoHS Compliant
Rev.A
•
•
•
•
•
Non-Isolated
•
Allows Burst Mode Operation at
Low Load Currents for xRAH-
02C500, Burst Mode Operation
Disabled for Lower Output Ripple
at Light Loads for xRAH-02C50B
High Efficiency
Fixed Frequency (550 kHz)
Low Profile Package
Trim Function (Option)
•
UL60950-1 Recognized (UL/cUL)
Description
The Bel xRAH-02C50x is a part of the low cost non-isolated dc/dc converter series. The modules use a SMD or
SIP package for ease of layout and space savings. The output is closely regulated and the efficiency is typically
87% at full load.
Part Selection
Output
Input Voltage
Max. Output Max. Output
Typical
Part Number
Part Number
Voltage
Current
Power
Efficiency
Surface Mount
Vertical Mount
5.0 Vdc
3.0 Vdc - 3.6 Vdc
1.5 A
7.5 W
87%
SRAH-02C50x
VRAH-02C50x
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. Replace “x” with “0” to allow burst mode operation at low load currents, or with “B” to disable burst
mode operation at light loads.
3. 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)
2.8 V
-
4.0 V
Ambient Temperature
Storage Temperature
-
-
-40 °C
-40 °C
85 °C
125 °C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
Input Current
3.0 V
-
3.6 V
-
-
-
3.3 A
Input Reflected Ripple Current
(rms)
With simulated source impedance
of 500 nH, 5 Hz to 20 MHz; Use
one 270 uF/16 V capacitor with
ESR = 0.018 ohm max. at 100 kHz
30 mA
60 mA
Input Reflected Ripple Current
(pk-pk)
-
100 mA
150 mA
I2t Inrush Current Transient
-
-
0.02 A2s
2.8 V
0.05 A2s
2.9 V
Turn-on Voltage Threshold
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com