NCP81111MNI0TXG

Overview

The NCP81111MNI0TXG is a single-output Intel VR12.5/VR12.6 compliant voltage regulator controller manufactured by onsemi. It operates within an input voltage range of 4.75V to 5.25V and supports a junction temperature range from -10°C to 100°C. The device is housed in a 32-VFQFN package with exposed pad, measuring 5x5 mm. This component is designed for high-performance CPU power delivery applications requiring precise regulation and compliance with Intel specifications.

Feature Summary

• Complies with Intel VR12.5 and VR12.6 specifications for processor voltage regulation
• Features a compact 32-pin QFN package suitable for space-constrained designs
• Supports surface-mount installation for automated manufacturing processes

Applications

• Intel Core processor voltage regulation modules
• Server and workstation mainboard power systems
• High-performance computing (HPC) platform power delivery

Procurement Notes

Verify the specific suffix '0' against current manufacturer documentation to confirm functional equivalence, as ordering suffixes may indicate variations in tape-and-reel specifications or packaging configurations. Confirm that the component status aligns with project requirements, noting that this specific part number has been marked as discontinued by the manufacturer. Ensure compatibility with existing PCB layouts and thermal management strategies before finalizing procurement decisions.

Selection Notes

Select this controller when designing for Intel VR12.5/VR12.6 compliant processors requiring a single regulated output. Consider the 32-QFN package dimensions for footprint constraints and verify thermal dissipation capabilities given the 100°C operating limit. Evaluate alternative active parts if long-term supply continuity is critical, as this model is no longer in production.

Part Context

The NCP81111 series represents onsemi's portfolio of multi-phase controllers optimized for modern microprocessor power delivery. These devices integrate advanced control algorithms to ensure stable voltage regulation under dynamic load conditions. The NCP81111 specifically targets single-output applications, distinguishing it from higher-phase variants like the NCP81611 which support four phases.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the NCP81111MNI0TXG is discontinued, engineers should consult official onsemi resources for recommended replacements or design-in alternatives that maintain VR12.5/VR12.6 compliance.