This is one of the single-cell battery charger types.
Part Number : SMB358
Function : Battery Charger IC
Package : BGA 30 Pin Ball Type
Manufactures : Samsung
See the preview image and the PDF file for more information.
Images :
Description :
SMB358 is a single-cell battery charger. It can charge
the battery and power the system via the USB/AC adapter input.
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Pinout