NCP5392EMNR2G

Overview

The NCP5392EMNR2G is a voltage regulator controller IC designed for Intel VR11, VR11.1, and AMD CPU power supplies. It features four independent output channels with an adjustable voltage range of 0.375V to 1.6V. The device operates on a single 5V input supply ranging from 4.75V to 5.25V. Packaged in a 40-VFQFN (6x6) exposed pad surface-mount format, it supports a junction temperature range of 0°C to 85°C. This component serves as a central controller for multi-phase CPU core voltage regulation.

Feature Summary

• Supports Intel VR11 and VR11.1 specifications alongside AMD CPU requirements
• Integrates four distinct output channels for simultaneous voltage regulation
• Operates within a standard 5V input supply rail environment

Applications

• Intel Core processor voltage regulation modules
• AMD CPU power delivery systems
• Multi-phase synchronous buck converter controllers

Procurement Notes

This component is officially marked as obsolete by the manufacturer. Availability is restricted to third-party distributors or surplus stockholders rather than direct factory production. Verify part authenticity carefully when sourcing from secondary markets. Confirm package integrity and pin condition prior to integration into design projects due to the discontinued status.

Selection Notes

Engineers should evaluate this controller specifically for legacy Intel VR11/VR11.1 and AMD platform designs requiring four-channel synchronization. Consider thermal dissipation capabilities inherent to the 40-QFN exposed pad configuration. Assess compatibility with existing phase driver circuits and feedback network requirements before finalizing the bill of materials for new hardware implementations.

Part Context

Part of the onsemi NCP5392 series dedicated to high-performance CPU voltage regulation. The EMNR2G suffix indicates specific packaging and tape-and-reel configuration details. This controller integrates essential PWM generation and control logic required for stable multi-phase operation in modern computing architectures.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific obsolete component. Designers must review alternative multi-phase controllers compatible with VR11/VR11.1 protocols. Evaluate functional equivalence regarding channel count, input voltage range, and thermal performance when selecting successor devices.