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For complete documentation, view the LTC3643EUDD#PBF page

Part Number*	Description	Package	Pins	Price (1-99)	Price (100+)	QTY
LTC3643EUDD#PBF	2A Bidirectional Charger/ Regulator for System Power Backup	QFN	24	$6.36	$5.40

* When ordering part numbers ending in #TR or #TRM for quantities less than (or not an even multiple of) a full reel, parts will be shipped in bulk or cut tape