343S00252 Power Management IC (Big) for iPad Pro 11 1st Gen (2018)

Apple's first 11-inch iPad Pro arrived in 2018 with an all-screen design, Face ID and USB-C. Behind all of that sits one large main PMIC that handles most of the board's rails, so a failure usually means no boot at all, or display and touch problems on a board that partly starts.

This listing sells the Apple 343S00252 power management IC, the big PMIC, for the iPad Pro 11-inch 1st gen (A1980, A2013, A1934). The listing gives its pin count as 400.

When it's worth suspecting

• No boot with a good battery and no main line short.

• Abnormal current at power-on.

• Display or touch faults that stay with known-good screen parts.

• A short traced to the PMIC.

Planning a large BGA swap

Measure the input and outputs and rule out shorted capacitors around the chip. The board is thin, so support it, preheat it gently and remove underfill carefully before lifting the chip.

After fitting, check every PMIC rail before full assembly, then test boot, Face ID, touch and charging over USB-C. Keep the old chip until the iPad passes every test, in case you need to compare markings.