Linear Technology LTC3586-1
High Effi ciency USB Power Manager
FEATURES
High Efficiency USB Power Manager with Boost, Buck-Boost and Dual BucksDESCRIPTION
Power Manager n High Efficiency Switching PowerPathTM Controller with Bat-TrackTM Adaptive Output Control and “Instant-On” Operation n Programmable USB or Wall Current Limit (100mA/500mA/1A) n Full Featured Li-Ion/Polymer Battery Charger with Float Voltage of 4.1V (LTC3586-1) or 4.2V (LTC3586) with 1.5A Maximum Charge Current n Internal 180mΩ Ideal Diode Plus External Ideal Diode Controller Powers Load in Battery Mode n <30µA No-Load Quiescent Current when Powered from BAT n Dual High Efficiency Buck DC/DCs (400mA IOUT) n High Efficiency Buck-Boost DC/DC (1A IOUT) n High Efficiency Boost DC/DC (800mA IOUT) n Compact (4mm × 6mm × 0.75mm) 38-Pin QFN PackageAPPLICATIONS
The LTC®3586/LTC3586-1 are highly integrated power management and battery charger ICs for Li-Ion/Polymer battery applications. They include a high efficiency current limited switching PowerPath manager with automatic load prioritization, battery charger, ideal diode, and four synchronous switching regulators (two bucks, one buckboost and one boost).