NCP5393AMNR2G

Overview

The NCP5393AMNR2G is a high-performance switching controller designed for CPU power applications, supporting 2, 3, or 4-phase configurations. It operates with a fixed frequency and utilizes current mode control for precise regulation. The device features an integrated bootstrap diode and dedicated gate drive outputs capable of sourcing and sinking significant current to drive external MOSFETs efficiently. It includes comprehensive protection mechanisms such as over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown to ensure reliable operation in demanding environments.

Feature Summary

• Supports flexible multi-phase architectures including 2, 3, and 4-phase setups for scalable CPU power delivery
• Integrates high-current gate drivers with dedicated source and sink capabilities for efficient MOSFET switching
• Includes built-in protection features like over-voltage protection and thermal shutdown for system safety

Applications

• CPU core voltage regulation modules (VRMs)
• High-density server power supplies
• Graphics processing unit (GPU) power stages

Procurement Notes

Verify the complete ordering part number against official onsemi documentation to ensure correct suffixes and package variants. Confirm that the specific revision level matches your design requirements. Cross-reference the datasheet electrical characteristics with your system's thermal and electrical constraints before finalizing procurement decisions.

Selection Notes

Select this component when designing multi-phase buck converters for processors requiring high transient response and efficiency. Ensure the external MOSFETs are compatible with the driver's output current capabilities. Evaluate the thermal performance of the SOIC-16 package relative to your PCB layout and ambient conditions to maintain safe operating temperatures.

Part Context

This part belongs to the NCP5393 series of multi-phase controllers from onsemi, specifically tailored for CPU and GPU power management. It is often used in conjunction with other PMIC components to form complete power solutions. Related parts in the family may include variants with different phase counts or enhanced light-load efficiency features.

Replacement Considerations

Direct substitutes within the same series include NCP5393A and NCP5393B. For pin-compatible alternatives, consider the NCP5392 series, though functional differences in light-load modes should be evaluated. Always verify electrical parameters and pin assignments before swapping.