LTC3586 Datasheet | Linear Technology

LTC3586/LTC3586-1 Features High Efficiency USB Power Manager with Boost, Buck-Boost and Dual Bucks Description Power Manager n High Efficiency Switching Power Path TM Controller with Bat-Track TM Adaptive Output Control and “Instant-On” Operation n Programmable USB or Wall Current Limit (100m A/500m A/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 (400m A IOUT) n High Efficiency Buck-Boost DC/DC (1A IOUT) n High Efficiency Boost DC/DC (800m A IOUT) n pact (4mm × 6mm × 0.75mm) 38-Pin QFN Package Applications 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 Power Path manager with automatic load prioritization, battery charger, ideal diode, and four synchronous switching regulators (two bucks, one buckboost and one boost). Designed specifically for USB applications, the LTC3586/LTC3586-1’s switching power manager automatically limits input current to a maximum of either 100m A or 500m A for USB applications or 1A for adapter-powered applications. Unlike linear chargers, the LTC3586/LTC3586-1 switching architecture transmits nearly all of the power available from the USB port to the load with minimal loss and heat which eases thermal constraints in small places. The two buck regulators can provide up to 400m A each, the buck-boost can deliver 1A, and the boost delivers at least 800m A. The LTC3586/LTC3586-1 are available in a low profile (0.75mm) 38-pin 4mm × 6mm QFN package. n Digital Still Cameras n HDD-Based MP3 Players, PDAs, GPS, PMPs n Other USB-Based Handheld Products , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Power Path and...