概述
The LP7801T is a device integrated with a linear chargerand a synchronous boost converter. The linear charger monitors the Li-ion battery status and manages the charging in three phases: trickle current charging, constant current charging and constant voltage charging. Additional features of the linear charger includecharging current monitoring, under-voltage lockout, autorecharge and charging termination indication.The integrated boost converter features ultra-low quiescent current. It is designed to operate directly from a single-cell Li-ion battery. The output voltage is fixed at 5.1V (Typ.) and the output current is capable of up to 500mA. The boost converter operates typically at 1.2 MHz switching frequency. A 2.2µH inductor is recommended for the converter.The LP7801T is available in ESOP-8 package.
