NCP5316MNR2

Overview

The NCP5316MNR2 is a dual-phase synchronous buck controller designed for high-performance computing applications. It integrates two high-side and two low-side drivers with an internal bootstrap diode. The device supports input voltages from 4.75V to 5.5V and features adjustable switching frequencies up to 1MHz. It includes comprehensive protection mechanisms such as over-current, over-voltage, and thermal shutdown. The component utilizes a compact QFN-20 package to facilitate efficient power delivery in space-constrained designs.

Feature Summary

• Dual-phase architecture for enhanced current capability
• Integrated bootstrap diodes for simplified design
• Comprehensive protection against fault conditions

Applications

• Central Processing Unit (CPU) core voltage regulation
• Graphics Processing Unit (GPU) power delivery
• Server and workstation mainboard power systems

Procurement Notes

Verify the specific suffix 'MNR2' against official datasheets to confirm tape-and-reel packaging specifications. Ensure compatibility with existing PCB footprints and thermal requirements. Cross-reference ordering information directly with onsemi documentation to avoid discrepancies in part identification or revision levels.

Selection Notes

Select this controller for applications requiring dual-phase power delivery with integrated driver capabilities. Consider its input voltage range and switching frequency adjustability when designing for specific load transient requirements. Evaluate the thermal performance within the QFN-20 package relative to the expected power dissipation levels in the target system.

Part Context

This component belongs to onsemi's NCP81xxx series of multi-phase controllers, optimized for next-generation processors. It represents a solution for reducing component count by integrating drivers and protection circuits. The series is widely adopted in high-density power architectures for modern computing platforms.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the NCP81xx family. Verify pinout compatibility and electrical parameter alignment before replacing. Generic equivalents may lack integrated features or require circuit modifications.