343S00256 Power Management IC for iPad Pro 12.9 3rd Gen (2018)

The 2018 iPad Pro 12.9-inch spreads its power work over several Apple chips. This 182-pin one is specific to the 12.9-inch model, so it's the part to reach for when diagnosis points at it on that board.

This listing sells the Apple 343S00256 power management IC for the iPad Pro 12.9-inch 3rd gen (A1876, A2014, A1895). The listing gives a pin count of 182.

Possible reasons to replace it

• A missing rail that this chip supplies.

• No boot with the main PMIC working.

• A short traced to the chip.

• Cracked joints after a bend.

Good to know

The 11-inch model from the same year uses 343S00257, so don't mix them up. The 12.9-inch board is large and thin, so support it well and preheat evenly.

After fitting, check the rails and test boot, touch and charging. A big iPad Pro that boots and charges normally is ready to close up. Test the four speakers and the cameras too, since a missing rail can affect them without stopping the boot.