343S00394 Power Management IC for iPad Air 4 (2020)

The iPad Air 4 from 2020 took the flat-edged look of the iPad Pro and added Touch ID in the top button. Its board uses several Apple power chips, and this 182-pin one can leave the tablet dead or missing a rail when it fails, even with a healthy battery inside.

This listing sells the Apple 343S00394 power management IC for the iPad Air 4th gen (A2316, A2324, A2325, A2072). The listing gives its pin count as 182 and doesn't say where it sits on the board.

When to suspect this chip

• No boot with a charged battery and a working charge port.

• A rail that this chip supplies is missing.

• A short traced to the chip.

• Damage after a drop or liquid exposure.

Practical notes

Find the chip by its 343S00394 marking in your board view and measure its rails first. The Air 4 is thin, so support the board on a preheater and keep the heat even to avoid warping.

After fitting, check the rails and test boot, touch, the top-button Touch ID and USB-C charging before closing the iPad. If every one of those works, the board has its power back in order.