NCP5398MNR2G

Overview

The NCP5398MNR2G is a single-output voltage regulator controller designed for Intel VR10, VR11, and AMD CPU applications. It operates within an input voltage range of 4.75V to 5.25V and provides an adjustable output voltage between 0.375V and 1.6V. The device is housed in a 40-QFN (6x6) package with exposed pad. It supports digital interfaces including SMBus/I2C for configuration and monitoring. The component functions as a specialized power management IC for high-performance processor core voltage regulation.

Feature Summary

• Integrated controller architecture supporting Intel VR10, VR11, and AMD CPU voltage regulator standards
• Single-channel output capability with wide programmable voltage range for diverse processor requirements
• Digital interface support enabling system-level monitoring and dynamic configuration via standard protocols

Applications

• Intel VR10 compliant CPU voltage regulation systems
• Intel VR11 compliant CPU voltage regulation systems
• AMD CPU voltage regulator module designs

Procurement Notes

Verify current product status as the component may be classified as obsolete or end-of-life. Confirm availability through authorized distributors or secondary market suppliers like Rochester Electronics. Ensure compatibility with target motherboard or server platform specifications before procurement. Check for any recent product change notifications regarding pinout or electrical characteristics.

Selection Notes

Select this component for designs requiring compliance with Intel VR10/VR11 or AMD CPU power delivery specifications. It is suitable for single-phase core voltage regulation where digital control is preferred. Consider thermal performance due to the QFN package and ensure adequate PCB layout for the exposed pad. Verify that the required output current and transient response meet the specific processor load line requirements.

Part Context

This part belongs to onsemi's portfolio of special purpose regulators and power management integrated circuits. It is part of the NCP53xx series, which focuses on multi-phase and single-phase controllers for high-performance computing applications. The NCP5398 specifically targets the single-output segment of this family, complementing multi-phase variants like the NCP5392.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is listed as obsolete, engineers should consult onsemi for recommended next-generation replacements or evaluate equivalent controllers from other manufacturers that support the same VR10/VR11/AMD standards.