Component: Power Management IC (e.g., Apple 338S00383-A0, TI PMB5762) soldered on iPhone XR logic board
Compatibility: iPhone XR models A1984/A2105/A2106/A2108
Use Cases:
- No charging or inconsistent charging behavior ("Not Charging")
- Random shutdowns, incorrect battery level readings
- Overheating of logic board due to power regulation faults
Quality: OEM/genuine or high‑grade aftermarket IC; requires BGA reflow soldering by experienced technician using hot‑air/touch‑down and test procedures