RT8223A - Main Power Supply Controller

Product Overview

Richtek

Part number	RT8223A
Manufacturer	Richtek
File Size	449.63 KB
Description	Main Power Supply Controller
Datasheet	RT8223A Datasheet
Additional preview pages of the RT8223A datasheet.

The RT8223A/B dual step-down, switch-mode powersupply controller generates logic-supply voltages in battery-powered systems.

2 linear regulators providing fixed 5V and 3.3V outputs. The linear regulator each provides up to 70mA output current with automatic linear-regulator bootstrapping to the PWM outputs. The RT8223A/B includes on-board power-up sequencing, the power good output, internal softstart, and internal soft-discharge output that prevents negative voltages on shutdown. A constant on-time PWM control scheme operates without sense resistor and provides 100ns response to load transients while maintaining a rel.

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Published: Jan 28, 2013 |