RT9945
RT9945 is manufactured by Richtek.
Power Management ICs for Handheld Device
General Description
The RT9945 is a plete 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 parator, a reset and an I2C serial interface to program one buck and one regulator output voltages as well as power on timing control for plete flexibility. The linear charger integrates LDO, MOSFET pass element, and thermal-regulation circuitry. The proprietary thermalregulation circuitry limits the die temperature when fast charging or while exposed to high ambient...
