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
High Efficiency
High Power Density
Excellent Thermal Performance
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Low Cost
Remote On/Off
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
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
Input
Voltage
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
Max. Output
Current
3A
3A
3A
3A
3A
3A
3A
3A
Max. Output
Power
15W
9.9W
7.5W
5.4W
4.5W
3.6W
3W
2.7W
Typical
Efficiency
95%
93%
91%
88%
87%
85%
84%
82%
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
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
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3V
-0.3V
0°C
-40°C
Typ
-
-
-
-
Max
14V
13.2V
70°C
100°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (no load)
Input Current (full load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(RMS)
I
2
t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Min
4.5V
-
-
-
-
-
-
-
-
Typ
-
30mA
-
4mA
75mA
30mA
0.02A
2
s
4.1V
3.3V
Max
13.2V
-
3A
-
150mA
60mA
0.08A
2
s
4.5V
4.0V
With simulated source impedance of
500nH, 5Hz to 20MHz; Use one
270uF/16V Oscon capacitor with ESR =
0.018 ohm max. at 100KHz at 25°C
Not applicable for 5.0V output.
Notes
Min. input voltage for 5.0V output module
should be 8.0V
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
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Tel 201-432-0463
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Fax 201-432-9542
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www.belfuse.com
BEL [ BEL FUSE INC. ]
