RT6228CGQUF RT6228C K5= Marking K5= IC

The RT6228CGQUF RT6228C K5= Marking K5= IC Power Management IC is a high-efficiency synchronous step-down (buck) converter designed to deliver stable output power from a wide input voltage range of 5.1V to 23V. It provides excellent conversion efficiency and low ripple output, making it ideal for powering CPUs, GPUs, and other digital loads in computing and industrial systems.

For flexible design requirements, the RT6228A variant allows output voltage adjustment between 0.6V and 5.1V, offering versatile use in multi-rail applications. The integrated high- and low-side MOSFETs reduce external components and improve system efficiency.

It includes Over-Current Protection (OCP), Under-Voltage Protection (UVP), and Thermal Shutdown to ensure safe operation. With its compact QFN package and marking code “K5=”, this IC is widely used in motherboards, graphic cards, and embedded systems.

Technical Summary:

• Model: RT6228CGQUF RT6228C K5= Marking K5= IC
• Marking Code: K5=
• Type: Synchronous Step-Down Converter (Buck Regulator)
• Input Voltage Range: 5.1V – 23V
• Output Voltage Range: 0.6V – 5.1V (adjustable)
• Features: Internal MOSFETs, high efficiency, programmable output
• Protection: OCP, UVP, Thermal Shutdown
• Package: QFN
• Applications: Motherboards, GPUs, embedded systems, power modules