AOZ1025D View Datasheet(PDF) - Alpha and Omega Semiconductor
Part Name
Description
Manufacturer
AOZ1025D Datasheet PDF : 15 Pages
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AOZ1025D
Maximum Output Current
Maximum output current of buck converters such as AOZ1025D is related with driving capability and thermal condition.
AOZ1025D’s driving voltage varies with the input voltage. When input voltage is higher than 6.5V, the driver inside the
AOZ1025D can drive both high side and low side MOSFETs to deliver 8A output current; but when the input voltage is
5V, the recommended maximum output current is de-rated to 6A.
The output voltage within a fixed input voltage directed determines the turn-on ratio of integrated PMOS, and thus the
thermal condition of AOZ1025D during the operation. The following diagrams show the safe operation region of
AOZ1025 operating at VIN = 5V, and VIN = 12V respectively.
VIN = 12V Safe Operation Region
9
8
7
6
5
4
3
2
1
0
0.8 1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
Output Voltage (V)
VIN = 5V Safe Operation Region
7
6
5
4
3
2
1
0
0.8
1.3
1.8
2.3
2.8
3.3
3.8
Output Voltage (V)
Input Voltage Vs. Maximum Output Current
AOZ1025D’s driving voltage varies with the input voltage.þWhen input voltage is higher than 6.5V, the driver inside the
AOZ1025D can drive both high side and low side MOSFETs to deliver 8A output current; but when the input voltage is
5V, the recommended maximum output current is de-rated to 6A.þThe following diagram shows relations of the input
voltage and the maximum output current of AOZ1025D.
Input Voltage vs. Maximum Output Current
9
8
7
6
5
4
3
2
5 6 7 8 9 10 11 12 13 14 15 16
Voltage (V)
Rev. 1.4 June 2012
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