The SMB1351-022 is a genuine Qualcomm charging IC built for Xiaomi Redmi series boards running on Snapdragon platforms. It handles single-cell Li-ion/Li-Polymer battery charging with Quick Charge 3.0 support, managing charge current, voltage regulation, and USB power delivery on the motherboard. Technicians reach for this IC when a Redmi comes in with dead charging, no charging response, slow charging, or a phone that won't power up after a charging port fault. BGA package, direct motherboard fit, no aftermarket clone confusion — just the correct original part number for accurate board-level repair.
