NCP5391MNR2G

Overview

The NCP5391MNR2G is a synchronous buck controller designed for high-performance voltage regulation. It integrates two high-side and two low-side drivers with an internal bootstrap diode, supporting input voltages from 4.75V to 28V. The device features adjustable switching frequencies up to 1MHz and includes comprehensive protection mechanisms such as overcurrent protection, undervoltage lockout, and thermal shutdown. Its compact DFN-16 package facilitates efficient power supply designs for server, storage, and industrial applications requiring precise multi-phase control.

Feature Summary

• Integrated dual high-side and dual low-side gate drivers with internal bootstrap diode
• Supports adjustable switching frequencies up to 1MHz for optimized efficiency
• Includes robust protection features like overcurrent protection and thermal shutdown

Applications

• Server and data center power supplies
• Storage area network (SAN) systems
• Industrial point-of-load converters

Procurement Notes

Verify the complete part number including suffixes to ensure correct tape-and-reel packaging and temperature grade. Confirm that the specific variant matches the required switching frequency range and driver current capabilities for the target application design.

Selection Notes

Select this component when designing multi-phase synchronous buck converters requiring integrated driver functionality. Ensure the input voltage range aligns with system requirements and consider thermal management solutions given the DFN-16 package constraints for high-current applications.

Part Context

This part belongs to onsemi's NCP53xx series of synchronous buck controllers. It is engineered for high-density power conversion, offering integration benefits by combining control logic with power drivers in a single package to reduce component count and board space.

Replacement Considerations

Check for direct pin-compatible alternatives within the NCP53xx family or other manufacturers' synchronous buck controllers with similar driver configurations and protection features. Verify electrical parameter compatibility before substitution.