NCP81174NMNTXG

Overview

The NCP81174NMNTXG is a multi-phase synchronous buck controller manufactured by onsemi, designed for high-performance power delivery. It supports configurable 4, 3, or 2-phase operation with integrated power saving modes to enhance efficiency under light loads. The device features a PWM VID interface for precise voltage regulation and fast transient response capabilities. Operating within a supply voltage range of 7V to 20V and switching frequencies between 200kHz and 1MHz, it utilizes a 32-QFN (5x5) package. Key control features include current limiting, enable functionality, frequency control, and power good signaling.

Feature Summary

• Configurable multi-phase architecture supporting 4, 3, or 2-phase synchronous buck topologies
• PWM VID interface enables precise output voltage programming and fast transient response
• Integrated power saving mode optimizes efficiency during low-load conditions
• Comprehensive protection and control features including current limiting and power good indication

Applications

• GPU power delivery systems
• CPU core voltage regulation
• High-density point-of-load conversion

Procurement Notes

Verify component authenticity through authorized distributors as the part is listed as obsolete. Confirm specific ordering suffixes match required packaging formats such as tape and reel or cut tape. Check for product change notifications regarding manufacturing site changes or material declarations. Ensure compliance with RoHS and REACH standards before integration into final assemblies.

Selection Notes

Select this controller for applications requiring flexible phase configuration and efficient light-load performance. Evaluate thermal requirements based on the 32-QFN package and operating temperature range of 0°C to 100°C. Consider external MOSFET selection to complement the controller's drive capabilities. Verify compatibility with system clock synchronization needs if applicable.

Part Context

This component belongs to the NCP81174 series of multi-phase controllers from onsemi. It is engineered specifically for demanding computing platforms where dynamic load changes are frequent. The series emphasizes compact design and high efficiency, making it suitable for modern processor power stages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for end-of-life alternatives.