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LTC4088-1/LTC4088-2 High Efficiency Battery Charger/USB Power Manager with Regulated Output Voltage DESCRIPTIO
The LTC ®4088-1/LTC4088-2 is a high efficiency USB PowerPath TM controller and Li-Ion/Polymer battery charger. It includes a synchronous switching input regulator, a full-featured battery charger and an ideal diode. Designed specifically for USB applications, the LTC4088-1/LTC4088-2’s switching regulator automatically limits its input current to either 100mA, 500mA or 1A via logic control. The LTC4088-1 powers-up with the charger off; the LTC4088-2 powers-up with the charger on. The switching input stage provides power to VOUT where power sharing between the application circuit and the battery charger is managed.