NCP5322ADWR2G

Overview

The NCP5322ADWR2G is a second-generation, two-phase step-down controller designed for high-performance processor power applications. It integrates all necessary control functions to drive external MOSFETs in a buck converter topology. The device features integrated gate drivers and a 5-bit digital-to-analog converter (DAC) for precise voltage regulation. It operates within a standard industrial temperature range and is housed in a 28-SOIC package with a width of 7.50 mm.

Feature Summary

• Integrates two-phase buck control logic with dedicated gate drivers for external power switches
• Includes a 5-bit DAC for programmable output voltage adjustment and monitoring
• Designed as a complete solution for powering high-performance processors

Applications

• High-performance processor core voltage regulation
• Two-phase synchronous buck converter designs
• Server and workstation mainboard power delivery systems

Procurement Notes

Verify the specific suffix 'G' indicates RoHS compliance when sourcing. Confirm the package type matches the 28-SOIC specification with a 7.50 mm width. Ensure the component status is listed as Active for current production support. Cross-reference the datasheet revision to ensure compatibility with existing design parameters.

Selection Notes

Select this component for applications requiring a compact, integrated solution for two-phase power conversion. The inclusion of integrated gate drivers reduces external component count compared to discrete driver solutions. The 5-bit DAC allows for flexible voltage setting without additional analog components. Consider the thermal performance of the 28-SOIC package relative to the expected load current.

Part Context

This part belongs to onsemi's second-generation series of step-down controllers. It is categorized under special purpose regulators and power management ICs. The device is distinct from single-phase controllers by its ability to manage two phases simultaneously, improving current handling capability for demanding processor loads.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family that may offer updated features or improved efficiency. Verify if newer generation controllers provide enhanced transient response or lower quiescent current while maintaining the two-phase architecture.