NCP81251MNTXG

Overview

The NCP81251MNTXG is a single-output switching voltage regulator designed for Intel VR12 processor power applications. It operates with an input voltage range of 5 V to 20 V and provides an adjustable output voltage from 0 V to 2.3 V. The device supports up to 14 A output current and functions within a temperature range of -40°C to +125°C. Packaged in a 48-QFN (6x6 mm) surface-mount format, it integrates control logic for efficient power conversion.

Feature Summary

• Complies with Intel VR12 specifications for processor core voltage regulation
• Supports high-current delivery up to 14 A for demanding computing loads
• Operates over extended industrial temperature ranges for reliability

Applications

• Intel VR12 compliant CPU power supply designs
• Single-phase buck converter implementations for processors
• Industrial computing systems requiring robust voltage regulation

Procurement Notes

Verify the specific suffix MNTXG against the manufacturer's official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with Intel VR12 interface requirements before integration. Cross-reference the RoHS status and material declarations with the latest onsemi documentation to meet environmental compliance standards for your target market.

Selection Notes

Select this component when designing for Intel VR12 architecture requiring a single-phase solution. It is suitable for applications needing wide input voltage tolerance and high current capability. Consider the 48-QFN footprint for PCB layout constraints. Evaluate thermal performance at maximum load conditions given the 14 A rating and operating temperature limits.

Part Context

This part belongs to the NCP81251 series of single-phase regulators. It is distinct from multi-phase controllers like the NCP81243 or gate drivers such as the NCP81253. The series focuses on integrated control for processor cores, differing from general-purpose buck converters by its specific adherence to legacy Intel voltage regulator protocols.

Replacement Considerations

Direct substitutes include other Intel VR12 compatible single-phase regulators from onsemi, such as the NCP81250MNTXG. Verify pinout compatibility and electrical parameters before swapping. Alternative manufacturers may offer functionally similar parts, but protocol compliance must be confirmed.