XRAH-03L2A0 Datasheet, PDF (1/9 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 24 Vdc Input 0.9 Vdc - 3.3 Vdc/3 A, 5 Vdc/2 A Output
xRAH-03L2A0 RoHS Compliant
Rev.A
• Non-Isolated
• High Efficiency
• High Power Density
• Low Cost
• Remote On/Off
• Fixed Frequency
• OCP/SCP
• UL60950-1 Recognized (UL/cUL)
Description
The Bel xRAH-03L2A0 modules are a series of non-isolated, step down dc/dc converters that operate from a
nominal 12 Vdc source. These converters are available in an output voltage range from 0.9 Vdc to 5 Vdc. It is
packaged in a compact, overmolded package rated at 3 A (0.9 Vdc-3.3 Vdc) and 2 A (5 Vdc). Optional lead
forming provides a vertical mount product for minimal footprint or a surface mount option for a very low profile.
The output is closely regulated and the efficiency is typically 91% at full load. Typical features include remote
on/off, over current protection and short circuit protection.
Part Selection
Output
Input
Voltage
Voltage
0.9 V - 5.0 V 5 V - 24 V
Max. Output
Current
3A
Max. Output
Power
10 W
Typical
Efficiency
91%
Part Number
Surface Mount
SRAH-03L2A0
Part Number
Vertical Mount
VRAH-03L2A0
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
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-40 °C
-40 °C
Typ
Max
-
25 V
-
24 V
-
85 °C
-
125 °C
Notes
Input Specifications
Parameter
Input Voltage
VO=5.0 V
VO=3.3 V
VO=2.5 V
VO=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.9 V
Input Current (no load)
Input Current (full load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(rms)
I²t Inrush Current Transient
Turn on Voltage Threshold
Turn off Voltage Threshold
Min
9V
5V
5V
5V
5V
5V
5V
-
-
-
-
-
-
-
3.5 V
Typ
-
-
-
-
-
-
-
-
-
3 mA
200 mA
50 mA
0.05 A²s
4.0 V
-
Max
24 V
24 V
24 V
18 V
15 V
12 V
9V
100 mA
2.5 A
10 mA
-
-
0.1 A²s
-
4.9 V
Notes
With simulated source impedance of 500
nH, 5 Hz-20 MHz. Use one 2*47 uF/35 V
Tantalum capacitor and one 3.3 uF/50 V
ceramic capacitor at the output.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com