NCP5380AMNR2G

Overview

The NCP5380AMNR2G is a 7-bit programmable single-phase synchronous buck switching regulator controller designed for Intel VR11 voltage regulator applications. It operates with an input voltage range of 4.5V to 5.5V and features a maximum switching frequency of 1500kHz. The device is housed in a 32-QFN (5x5) package with exposed pad. It supports an operating temperature range of -40°C to +100°C, distinguishing it from the standard NCP5380 which is rated for 0°C to 85°C.

Feature Summary

• Supports Intel VR11 specification for processor power management
• Features 7-bit programmable output voltage control
• Utilizes voltage-mode control architecture for stable regulation

Applications

• Intel VR11 compliant CPU core voltage regulation
• Single-phase synchronous buck converter designs
• High-performance computing power supply units

Procurement Notes

Verify the specific suffix 'A' in the part number to confirm the extended temperature range capability (-40°C to +100°C), as this distinguishes it from the standard NCP5380 variant. Ensure compatibility with the required 32-QFN footprint during PCB layout. Confirm current availability status directly with authorized distributors, as production lifecycle changes may affect supply continuity.

Selection Notes

Select this component when designing for Intel VR11 standards requiring precise 7-bit programmability. The extended temperature rating makes it suitable for industrial or automotive-adjacent environments where ambient temperatures may exceed 85°C. Compare against dual-phase alternatives if higher current delivery is needed, as this is a single-phase controller.

Part Context

This part belongs to the NCP5380 family of special purpose regulators from onsemi. It serves as a dedicated controller for synchronous buck converters, specifically optimized for powering high-current digital logic loads such as CPUs and FPGAs. The 'A' suffix indicates an enhanced temperature grade compared to the base model.

Replacement Considerations

The standard NCP5380MNR2G is a functional substitute but lacks the extended -40°C to +100°C temperature rating. Verify thermal requirements before substitution. No other direct cross-references are publicly confirmed for this specific pin-compatible variant.