(also marked as ) is an integrated circuit primarily used as a SMBus Level 2 Battery Charger
(Quad Flat No-lead) package, though some variants may be labeled as 28-pin. Application:
: For digital ICs, timing diagrams and specifications are crucial for understanding how the IC interacts with other components.
, which allows the system to draw power from both the battery and the AC adapter simultaneously during peak load periods. AliExpress Pinout and Implementation
: Frequently replaced on MacBook Pro logic boards (like the 820-2879-B ) when the device fails to charge or does not recognize the battery.