X7AH-03L1A0 Datasheet, PDF (1/6 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 5 V-24 V Input 0.9 V-3.3 V/3 A Output

NON-ISOLATED DC/DC CONVERTERS
5 V-24 V Input
0.9 V-3.3 V/3 A Output
x7AH-03L1A0
• Non-Isolated
• High Efficiency
• High Power Density
• Low Cost
• Remote On/Off
• Fixed Frequency
• OCP/SCP
Description
The Bel x7AH-03L1A0 modules are a series of non-isolated, step down dc/dc converters that operate from a
nominal 12 V source. These converters are available in an output voltage range 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 output is closely regulated and
the efficiency for 3.3 V output is typically 88% at full load. Typical features include remote on/off, over current
protection and short circuit protection.
Part Selection
Output
Voltage
Input
Voltage
0.9 V - 3.3 V 5.0 V – 24 V
Max. Output
Current
3A
Max. Output
Power
10 W
Typical
Efficiency
88%
Part Number
Surface Mount
S7AH-03L1A0
Part Number
Vertical Mount
V7AH-03L1A0
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
25 V
24 V
85 °C
125 °C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (no load)
Input Current (full load)
Remote Off Input Current
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 Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
I²t Inrush Current Transient
Turn on Voltage Threshold
Turn off Voltage Threshold
Min
5V
5V
5V
5V
5V
5V
-
-
-
-
-
-
-
3.5 V
Typ
Max
Notes
-
-
-
-
-
-
-
-
3 mA
200 mA
50 mA
0.05 A²s
4.0 V
-
24 V
24 V
18 V
15 V
12 V
9V
100 mA
3A
10 mA
-
-
0.1 A²s
-
4.9 V
With simulated source impedance of 500
nH, 5 Hz to 20 MHz. Use one 100 uF/
35 V Tantalum capacitor and one 3.3 uF/
50 V ceramic capacitor at the input
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com