NCP5381AMNR2G

Overview

The NCP5381AMNR2G is a specialized voltage regulator controller designed for Intel Pentium IV processor applications, supporting VR10 and VR11 specifications. It operates as a 2/3/4 phase buck controller with an input voltage range of 10.8V to 13.2V. The device features four outputs and is housed in a 40-QFN (7x7) package. It meets Intel vR10.0, 10.1, 10.2, and 11.0 standards for desktop end products.

Feature Summary

• Supports 2, 3, or 4 phase buck control configurations
• Complies with Intel VR10 and VR11 voltage regulator specifications
• Designed specifically for Intel Pentium IV processor power management

Applications

• Intel Pentium IV processor voltage regulation
• VRM modules for desktop computers
• Multi-phase buck controller designs meeting VR10/VR11 standards

Procurement Notes

Verify the exact suffix 'R2G' against official onsemi documentation to confirm tape and reel packaging details. Ensure compatibility with VR10/VR11 requirements for target Pentium IV platforms. Cross-reference pinout and thermal characteristics with the latest datasheet revision before integration.

Selection Notes

Select this component when designing power stages for legacy Intel Pentium IV systems requiring VR10 or VR11 compliance. It is suitable for multi-phase buck topologies needing precise voltage control. Consider thermal performance in the 40-QFN package for high-current desktop applications.

Part Context

This part belongs to onsemi's special purpose voltage regulator family, specifically tailored for CPU core voltage regulation. It addresses the power delivery needs of high-performance processors from the early 2000s era, ensuring stable operation under varying load conditions for desktop computing environments.

Replacement Considerations

Check for direct substitutes within the NCP5381 series or compatible VR controllers that meet identical VR10/VR11 electrical specifications. Verify pin-to-pin compatibility and phase configuration support before substitution.