ON Semiconductor NCP5393: Multiphase Buck Controller

The ON Semiconductor NCP5393 is a high-performance, multiphase buck controller designed to meet the rigorous power supply requirements of modern microprocessors, particularly in computing applications. This advanced controller is engineered to provide precise voltage regulation, efficient power conversion, and robust thermal performance, making it an ideal choice for desktops, servers, and high-end gaming systems.

Key Features

• Multi-Phase Operation: The NCP5393 can operate in multiple phases, typically 2, 3, or 4, to efficiently distribute the thermal load and reduce the total output voltage ripple, enhancing system performance and reliability.
• High Efficiency: With its integrated gate drivers and adaptive voltage positioning (AVP), the controller achieves high efficiency across a wide load range, minimizing power loss and improving system thermals.
• Precision Voltage Regulation: The device features precision voltage regulation that closely tracks the CPU's VID (Voltage Identification Definition) to ensure optimal processor operation and power savings.
• Robust Protection Features: The NCP5393 is equipped with a comprehensive suite of protection features, including over-voltage, under-voltage, over-current, and thermal shutdown to safeguard the system under abnormal conditions.

Applications

The versatility of the NCP5393 makes it suitable for a wide range of applications that require stable and efficient power delivery. It is commonly used in:

• Desktop and Laptop Computers
• High-Performance Servers
• Gaming Consoles
• Workstations
• Embedded Systems

Technical Specifications

The NCP5393 is designed with technical specifications that ensure it meets the needs of demanding power supply designs:

• Voltage Mode Control with Input Voltage Feed-Forward
• Adjustable Switching Frequency up to 1MHz per Phase
• Differential Remote Voltage Sensing
• Digital Soft-Start and Soft-Stop
• Support for DCR Current Sensing or Discrete Resistive Current Sensing

With its cutting-edge features and robust design, the ON Semiconductor NCP5393 stands out as a premier solution for advanced power management in high-performance computing environments.