RT9945 Datasheet (Richtek Technology Corporation)

RT9945, Power Management ICs

The RT9945 is a complete power management IC (PMIC) for handheld device platform.

This PMIC contains a fully integrated linear charger for a single cell Lithium Ion battery, five LDO linear regulators and two high efficiency buck converters, a comparator, a reset and an I2C serial interface to progr

RT9945 Features

* z Charger ` Adapter/USB & Battery Two Input with Auto Power The two step-down converters are optimized for small size inductor and high efficiency applications. They utilize a proprietary hysteretic PWM control scheme that switches with nearly fixed frequency and is adjustable, allowing the custom