343S00554 Power IC for MacBook Air 13 A2681 (Mid 2022, M2)

The M2 MacBook Air from 2022 has a thin, fanless design with Apple power chips placed close to the processor. When one of them fails, the laptop can show no sign of life on the charger, or it may draw a little current and stop there, which is a common pattern on Apple silicon boards with a power fault.

This listing sells the Apple 343S00554 power IC, a 420-pin BGA, for the MacBook Air 13-inch A2681 (Mid 2022, M2). The listing doesn't say which rails it controls or where it sits on the board.

When it comes into question

• No power-on with a known-good USB-C charger.

• Low, stuck current at the charger with missing rails.

• A short traced to the chip.

• Liquid damage around it.

Practical points

Apple silicon boards have many small rails, and a shorted capacitor is a more common cause than a failed BGA. Find and clear shorts first, then confirm the chip's inputs and outputs before deciding to replace it.

A 420-pin BGA needs a preheater, careful underfill removal and clean pads. After fitting, check the rails and test boot, charging and the keyboard and trackpad before closing the case.