The RT8249D 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 3.3V linear regulator provides 1%
accuracy under 35mA. The RT8249D provides a mode
selection pin, SKIPSEL, to select Diode-Emulation Mode
(DEM) or Audio Skipping Mode (ASM). Other features
include on-board power-up sequencing, a power-good
output, internal soft-start, and soft-discharge output that
prevents negative voltage during shutdown.RT8249DGQW资料下载
