PDF datasheet of 238 KB covering the AO4423, a P-channel power MOSFET made by Alpha and Omega Semiconductor in SO-8 form. On motherboards this kind of transistor typically switches the main input or battery supply under charger IC control. The tables list pinout, maximum voltage and current, on-resistance and gate charge. During diagnosis it helps confirm whether the part is conducting as expected, where the short sits on a dead board, and whether a candidate replacement has compatible characteristics and package.
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