NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input
0.9V-5.0V/3A Output
x7AH-03Exx0 Series
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Non-Isolated
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Low Cost
High Efficiency
Remote On/Off
High Power Density
Excellent Thermal Performance
Under-voltage Lockout (UVLO) *
OCP/SCP
* Not applicable for 5.0V output module.
Description
The Bel x7AH-03Exx0 Series are part of the low cost non-isolated DC/DC power converters. The modules use a
surface mount package or vertical package for ease of layout and space savings, with a low profile of only
7.82mm. The output is closely regulated and the efficiency of 5V output module is typically 95% at full load.
Typical features include Remote On/Off, under-voltage lockout, over-current protection and short circuit
protection.
Part Selection
Output
Voltage
5.0V
Input
Voltage
Max. Output
Current
Max. Output
Power
15W
Typical
Efficiency
95%
Part Number
Surface Mount
S7AH-03E500
S7AH-03E330
S7AH-03E250
S7AH-03E180
S7AH-03E150
S7AH-03E120
S7AH-03E100
S7AH-03E090
Part Number
Vertical Mount
V7AH-03E500
V7AH-03E330
V7AH-03E250
V7AH-03E180
V7AH-03E150
V7AH-03E120
V7AH-03E100
V7AH-03E090
8.0 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
3A
3A
3A
3A
3A
3A
3A
3A
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
9.9W
7.5W
5.4W
4.5W
3.6W
3W
2.7W
93%
91%
88%
87%
85%
84%
82%
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
-0.3V
-0.3V
0°C
Typ
Max
14V
Notes
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
-
-
-
-
13.2V
70°C
100°C
Storage Temperature
-40°C
Input Specifications
Parameter
Min
Typ
Max
Notes
Min. input voltage for 5.0V output module
should be 8.0V
Input Voltage
4.5V
-
13.2V
Input Current (no load)
Input Current (full load)
Remote Off Input Current
-
-
-
30mA
-
-
3A
-
4mA
Input Reflected Ripple Current
(pk-pk)
With simulated source impedance of
500nH, 5Hz to 20MHz; Use one
270uF/16V Oscon capacitor with ESR =
-
-
75mA
150mA
Input Reflected Ripple Current
(RMS)
30mA
60mA
0.018 ohm max. at 100KHz at 25°C
I2t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
-
0.02A2s
4.1V
0.08A2s
4.5V
Not applicable for 5.0V output.
3.3V
4.0V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com