X7AH-03F1A0 Datasheet, PDF (1/6 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 3.0 V-5.5 V Input 0.9 V-3.3 V/3 A Output

NON-ISOLATED DC/DC CONVERTERS
3.0 V-5.5 V Input 0.9 V-3.3 V/3 A Output
x7AH-03F1A0
• Non-Isolated
• High Efficiency
• Fixed Frequency (300 kHz)
• Low Cost
• Remote On/Off
• Input Under Voltage Lockout
• OCP/SCP
• Wide Range Trim
Description
The Bel x7AH-03F1A0 module is a non-isolated, step down dc/dc converter that operates from 3.0 V to 5.5 V
source. This converter is available in a range of output voltages from 0.9 V to 3.3 V. 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 V module is typically 92% at 5 V input at
full load. Typical features include remote on/off, input under voltage lockout, over current protection and short
circuit protection.
Part Selection
Output
Voltage
Input
Voltage
0.9 V - 3.3 V 3.0 V - 5.5 V
Max. Output
Current
3A
Max. Output
Power
10 W
Typical
Efficiency
92%
Part Number
Surface Mount
S7AH-03F1A0
Part Number
Vertical Mount
V7AH-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