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X7AH-12F1A0 Datasheet, PDF (1/6 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 3.0V-5.5V Input 0.8V-3.3V/12A Output
NON-ISOLATED DC/DC CONVERTERS
3.0V-5.5V Input
0.8V-3.3V/12A Output
X7AH-12F1A0
PRELIMINARY
• Non-Isolated
• High Efficiency
• Fixed Frequency
• Excellent Thermal Performance
• Low Cost
• OCP/SCP
• Input Under Voltage Lockout
• Remote On/Off
• Remote Sense (SMD module)
• Trim Function
Description
The Bel X7AH-12F1A0 is part of the low cost non-isolated dc to dc converter series. This converter is available
in a range of output voltages from 0.9V to 3.3V. It is packaged in a compact, overmolded package rated at 12A.
The output is closely regulated and the efficiency of 3.3V output module is typically 93% 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
0.8V-3.3V 3.0V – 5.5V
Max. Output
Current
12A
Max. Output
Power
39.6W
Typical
Efficiency
93%
Part Number
Surface Mount
S7AH-12F1A0
Part Number
Vertical Mount
V7AH-12F1A0
Absolute Maximum Ratings
Parameter
Min
Typ
Input Voltage (continuous)
-0.3V
-
Output Enable Terminal Voltage
-0.3V
-
Ambient Temperature
-40°C
-
Storage Temperature
-55°C
-
Max
6V
7V
85°C
125°C
Notes
Input Specifications
Parameter
Input Voltage 1
Min
Typ
3V
-
Max
5.5V
Notes
Input Current (no load)
-
120mA 200mA
Input Current (full load)
VO=3.3V
-
VO=2.5V
-
VO=1.8V
-
VO=1.5V
-
VO=1.2V
-
VO=1.0V
-
VO=0.9V
-
-
11A
-
10.5A
-
9.0A
-
8.1A
-
6.5A
-
5.2A
-
3.2A
Remote Off Input Current
-
2mA
5mA
Input Reflected Ripple Current (pk-pk)
-
100mA
150mA
With simulated source impedance of
500nH, 5Hz to 20MHz; use a
270uF/16V cap with ESR=0.0018 ohm
Input Reflected Ripple Current (RMS)
-
35mA
60mA max at 100KHz
I2t Inrush Current Transient
-
0.09A2s
0.2A2s
Turn on Voltage Threshold
2.1V
-
Turn off Voltage Threshold
-
2V
2.4V
Note: 1. The input voltage range of 3.3V output module is 4.5V-5.5V and that of 2.5V module is 3.6V-5.5V.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com