RT8240B RT8240BGQ 29D 29W Marking 29= IC

The RT8240B RT8240BGQ 29D 29W Marking 29= IC is a multi-phase synchronous buck PWM controller from Richtek Technology, identified by the on-chip marking "29D" or "29W" (marking code: 29=). This high-performance controller is designed for powering CPUs, GPUs, and other high-current digital processors in desktop and server applications. The RT8240B integrates advanced control algorithms with precision current sensing and balancing across multiple phases to ensure optimal power delivery and thermal distribution.

Key features RT8240B RT8240BGQ 29D 29W Marking 29= IC include adaptive voltage positioning (AVP), dynamic phase shedding for improved light-load efficiency, comprehensive protection functions such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown. The device supports wide input voltage ranges and offers flexible configuration options including adjustable switching frequency, external reference input, and power good signaling. Packaged in a GQ format (typically QFN), the RT8240B provides excellent