Integration and Functional Expansion of Switching Power Supply Chips in High-Frequency Regulated Power Systems

High-frequency regulated power supplies demand compact, efficient, and intelligent control solutions. The evolution of integrated switching power supply chips has revolutionized system design by combining control, drive, and protection functions into a single silicon platform.
Modern power ICs utilize system-in-package (SiP) and power system-on-chip (PSoC) technologies to integrate power MOSFETs or GaN transistors with controllers and protection logic. This reduces parasitic inductance, enabling operation at frequencies exceeding several megahertz. High-frequency operation minimizes the size of magnetic components, significantly increasing power density.
Integrated chips now include advanced functions such as adaptive frequency scaling, load-based mode switching, digital interfaces (I²C, SPI, CAN), and built-in fault diagnostics. These features support intelligent power management, thermal protection, and real-time communication with supervisory systems.
Furthermore, the integration of soft-start control, overcurrent protection, and programmable compensation networks enhances flexibility and stability. This high level of integration improves conversion efficiency while reducing external component count, making high-frequency regulated power supplies ideal for compact high-voltage applications.