XRAH-03F1A0 Datasheet, PDF (1/9 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 0.9 Vdc - 3.3 Vdc/3 A Output

NON-ISOLATED DC/DC CONVERTERS
3.0 Vdc - 5.5 Vdc Input
0.9 Vdc - 3.3 Vdc/3 A Output
xRAH-03F1A0
RoHS Compliant
• Non-Isolated
• High Efficiency
• Fixed Frequency (300 kHz)
• Low Cost
• UL60950 Recognized (UL/cUL)
• Remote On/Off
• Input Under Voltage Lockout
• OCP/SCP
• Wide Range Trim
Description
The Bel xRAH-03F1A0 module is a non-isolated, step down dc/dc converter that operates from 3.0 Vdc to 5.5
Vdc source. This converter is available in a range of output voltages from 0.9 Vdc to 3.3 Vdc. It is packaged in a
compact, overmolded package rated at 3 A. Optional lead forming provides a vertical mount product for minimal
footprint or a surface mount option for a very low profile. The efficiency of 3.3 Vdc module is typically 92% at 5
Vdc input and full load. Typical features include remote on/off, input under voltage lockout, over current
protection and short circuit protection.
Part Selection
Output Voltage
0.9 Vdc - 3.3 Vdc
Input Voltage
3.0 Vdc - 5.5 Vdc
Max. Output
Current
3A
Max. Output
Power
10 W
Typical
Efficiency
92%
Part Number
Surface Mount
SRAH-03F1A0
Part Number
Vertical Mount
VRAH-03F1A0
Note: Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel Packaging”,
and “G” for “Tray Packaging”.
Absolute Maximum Ratings
Parameter
Min
Typ
Input Voltage (continuous)
-0.3 V
-
Output Enable Terminal Voltage
-0.3 V
-
Ambient Temperature
-40 °C
-
Storage Temperature
-40 °C
-
Max
6V
6V
85 °C
125 °C
Notes
Input Specifications
Parameter
Input Voltage
VO=3.3 V
VO=2.5 V
VO=0.9 V-1.8 V
Input Current (no load)
Input Current (full load)
VO=3.3 V
VO=2.5 V
VO=1.8 V
VO=1.5 V
VO=1.2 V
Vo=0.9 V
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
Min
4.5 V
3.6 V
3.0 V
-
-
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
-
-
5 mA
75 mA
25 mA
Max
Notes
5.5 V
5.5 V
5.5 V
70 mA
2.5 A
2.4 A
2.2 A
1.9 A
1.6 A
1.3 A
10 mA
-
-
Tested with simulated source impedance
of 500 nH, 5 Hz to 20 MHz and two 270
uF/16 V Oscon caps with ESR=0.018 ohm
max at 100 kHz
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com