The NCP5387 from ON Semiconductor is a versatile and efficient multiphase buck controller designed to meet the rigorous power supply requirements of high-performance CPUs and other computing applications. This advanced controller integrates a range of features to enhance system stability, efficiency, and power management.

Key Features

• Multi-Phase Operation: The NCP5387 can operate in multiple phases, typically ranging from 1 to 4 phases, which helps in distributing the thermal load and reducing stress on individual components, thereby prolonging the life of the power supply.
• High Precision Voltage Regulation: This controller maintains tight voltage regulation accuracy, which is critical for ensuring the CPU operates within its specified voltage range for optimal performance and reliability.
• Adaptive Voltage Positioning (AVP): AVP adjusts the output voltage as a function of the load current, which helps to minimize the voltage deviation during transient load changes and improves system stability.
• Differential Remote Voltage Sensing: The NCP5387 includes differential remote voltage sensing to compensate for voltage drops in the power delivery path, ensuring precise voltage delivery to the load.

Efficiency and Protection

The NCP5387 is engineered to maximize efficiency across a wide range of load conditions. It features integrated gate drivers with adaptive gate drive timing to optimize switching losses. The controller also provides comprehensive protection features including overvoltage, undervoltage, overcurrent, and thermal shutdown to safeguard the system under abnormal conditions.

Applications

Primarily designed for powering CPUs in desktops, workstations, and servers, the NCP5387 is also suitable for other high-performance computing applications that require efficient and stable power delivery. Its robust design and feature set make it an excellent choice for system architects and power supply designers looking to balance performance with reliability.