343S00119 Power Management IC for iPad Pro 12.9 2nd Gen (2017)

Besides its 132-pin power chips, the 2017 iPad Pro 12.9-inch has a smaller 121-pin power management part. When that one fails, the iPad can stay dead or lose a rail that a particular function depends on.

This listing sells the 343S00119 power management IC for the iPad Pro 12.9-inch 2nd gen (A1670, A1671). The listing gives a pin count of 121 and doesn't name a board position.

Possible reasons to replace it

• No boot with the main PMIC and battery checked.

• A missing rail that this chip supplies.

• A short on its supply traced to the chip.

• Liquid damage nearby.

Confirm before ordering

Match the 343S00119 marking and use your board view to find which rails it supplies. The 2017 12.9-inch uses several Apple power chips, so the marking is the only reliable way to be sure.

Fit with a preheater and fresh flux, measure the rails, and then test a full boot with the screen connected. If it starts, charges normally and stays cool after some use, the repair is complete.