PM8150A 102 Power ic

Open a Snapdragon 855-era board and you won't find one power IC doing all the work. Qualcomm split the job across three companion chips — PM8150, PM8150A, and PM8150B — and each one owns a different set of voltage rails. The PM8150A-102 covers regulators that feed RF front-end components and secondary system rails, which puts it right in the middle of your fault-finding path whenever a board goes completely dead or boots halfway and stalls.You'll run into this chip on boards where the phone doesn't power on at all, where it hangs on logo after a flash, or where the battery drains fast even with the device switched off. Before you jump to a CPU reball or write the board off, check the power rail readings against a known-good board. If the PM8150A rail shows a short or an open, replacing the chip solves the fault without touching the main SoC — a much cheaper repair than most technicians assume going in.This IC pairs with Snapdragon 855, 855+, 860, and 865 chipsets, so you'll find it across a wide spread of 2019–2021 flagship boards. Teardown data confirms the PM8150/PM8150A/PM8150B trio on Samsung's Galaxy S10 series, and repair-market sourcing consistently ties the PM8150A-102 to Xiaomi's Mi 9 and Mi 9T generation, the Mi 10 Pro, Motorola's Edge Plus, and Oppo's Reno 10x Zoom. If your workshop handles a mix of Snapdragon 855-family boards, keeping this IC on the shelf saves you a wait on the next dead-board job.Handling this chip on the bench doesn't require anything unusual — standard BGA reballing and hot air rework practices apply. Clean the pad thoroughly after removing the damaged IC, check for lifted pads or cold joints on the board side before reballing, and reflow with your usual profile for QFN/BGA power ICs of this pitch. A jumper lagana fix rarely holds on a power rail long-term, so a proper chip swap is the reliable route once you've confirmed the fault sits at the PMIC and not upstream on the battery connector or charging circuit.Diagnosing before you commit matters here. Run your board through ISP or EDL mode where the platform allows it, and cross-check current draw against a healthy reference board. Software marna alone won't fix a shorted power rail — if the board pulls abnormal current on the PM8150A's rail with no visible board damage, the chip itself is the likely point of failure. This keeps your repair time focused and stops you from chasing a hardware fault with a software-only approach.Stock this IC if your service center regularly takes in Snapdragon 855 and 865 boards from Samsung, Xiaomi, Motorola, or Oppo devices. It's a targeted fix for a specific class of no-power and boot loop issue that shows up often enough on this chipset generation to justify keeping a few units on hand rather than sourcing one per job.