The NCP81103 from ON Semiconductor is a versatile and efficient multi-phase buck controller designed to deliver precision voltage regulation and optimal power efficiency for computing applications. This advanced controller is engineered to meet the rigorous demands of modern CPUs, GPUs, and DDR memory power supplies, ensuring stable and reliable performance in a variety of systems.

Key Features:

• Multi-Phase Operation: The NCP81103 can operate with multiple phases to efficiently handle high current demands while maintaining a low thermal footprint. This feature allows for excellent load transient response and reduces the overall solution size by utilizing smaller inductors and capacitors.
• Configurable Phase Count: The controller supports configurations from one to four phases, enabling flexibility in design and optimization for specific power requirements.
• Voltage Regulation: With an integrated high-precision voltage reference, the NCP81103 offers tight voltage regulation to ensure the CPU or GPU receives stable power, enhancing system performance and reliability.
• Energy-Efficient Operation: The controller includes features such as diode emulation and phase shedding, which improve efficiency at light loads and extend battery life in portable applications.
• Protection Features: Comprehensive protection mechanisms are built into the NCP81103, including overvoltage, undervoltage, overcurrent, and overtemperature protections to safeguard the system from various fault conditions.
• I<sup>2C Interface: An I<sup>2C interface allows for real-time system monitoring and control, enabling dynamic voltage adjustments and power management optimization.

Applications:

The NCP81103 is ideal for powering high-performance integrated circuits in a range of computing environments. Its applications include:

• Desktop and Laptop CPUs
• Graphics Cards (GPUs)
• Memory Power Supplies (DDR2, DDR3, DDR4)
• High-Density Computing Systems
• Embedded Systems and Servers

With the NCP81103, ON Semiconductor continues to demonstrate its commitment to delivering high-quality power management solutions that drive innovation and efficiency in the computing industry.