LTC4089-1
USB Power Manager with High Voltage Switching Charger
Features
nn Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V External Supply
nn High Efficiency 1.2A Charger from 6V to 36V Input nn Load Dependent Charging from USB Input
Guarantees Current Compliance nn 215mΩ Internal Ideal Diode plus Optional External
Ideal Diode...