LTC3553EUD-2#PBF

Price range: $5.93 - $7.32

Micropower USB Power Manager with Li-Ion Charger, Always-On LDO and Buck Regulator Features: 12μA Standby Mode Quiescent Current (All Outputs On) Seamless Transition Between Input Power Sources: Li-Ion/Polymer Battery and USB 240mΩ Internal Ideal Diode Provides Low Loss PowerPath™ High Efficiency 200mA Buck Regulator Always-On 150mA Low Dropout (LDO) Linear Regulator Pushbutton On/Off Control With System Reset Full Featured Li-Ion/Polymer Battery Charger Programmable Charge Current With Thermal Limiting Instant-On Operation With Discharged Battery 3mm × 3mm × 0.75mm 20-Pin QFN Package