RT8223N RT8223NZQW 11 ed Marking 11=IC

The RT8223N RT8223NZQW 11 ed Marking 11=IC is a dual step-down switch-mode power supply controller from Richtek Technology, identified by the on-chip marking "11=". This device integrates two PWM controllers with adjustable output voltages ranging from 2V to 5.5V, making it suitable for multi-voltage battery-powered systems. The RT8223N also features built-in 5V and 3.3V linear regulators, each capable of delivering up to 100mA output current with automatic bootstrapping to the PWM outputs for improved efficiency.

The device includes essential protection and control features such as power-up sequencing, power good output, internal soft-start, and over-temperature protection. Housed in a compact ZQW package (WDFN/QFN type), the RT8223N RT8223NZQW 11 ed Marking 11= is designed for space-constrained applications in notebooks, tablets, and portable electronics.