RT6545A Datasheet (Richtek) - Dual-Channel Synchronous DC/DC Step-Down Controller

RT6545A, Dual-Channel Synchronous DC/DC Step-Down Controller

The RT6545A/B is a dual-channel step-down, controller generating supply voltages for battery-powered systems.

It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators.

Each linear regulator provides up to 100mA output current and 3.

RT6545A Features

* include on-board power-up sequencing, a powergood output, internal soft-start, and soft-discharge output that prevents negative voltage during shutdown. A constant current ripple PWM control scheme operates without sense resistors and provides 100ns response to load transient. For maximizing power e