NCP5322ADWR2

Overview

The NCP5322ADWR2 is a two-phase buck controller manufactured by onsemi, designed for high-performance processor voltage regulation. It integrates gate drivers and a five-bit digital-to-analog converter (DAC). The device operates within an input voltage range of 4.5V to 14V and supports adjustable output voltages. Packaged in a 28-SOIC surface-mount format, it functions across a commercial temperature range of 0°C to +70°C. This component serves as a specialized power management integrated circuit for efficient DC-DC conversion in demanding computing applications.

Feature Summary

• Integrates dual gate drivers for direct control of external MOSFETs
• Includes a five-bit DAC for precise digital voltage adjustment
• Supports two-phase buck topology for enhanced current handling

Applications

• High-performance processor voltage regulation
• Server and workstation power supplies
• Graphics processing unit (GPU) power delivery

Procurement Notes

Verify the specific suffix 'WR2' against the manufacturer's official documentation to confirm package dimensions and tape-and-reel specifications. Confirm RoHS compliance status with the latest datasheet revision, as environmental declarations may vary by production batch. Ensure the design accounts for the component's obsolete status by evaluating long-term supply availability or approved alternates before finalizing procurement plans.

Selection Notes

Select this controller when designing multi-phase buck converters for central processing units requiring digital voltage tracking. The integrated gate drivers simplify bill of materials by reducing external driver requirements. Consider the 28-SOIC package for thermal management needs and board space constraints. Verify that the input voltage range aligns with the system's power rail capabilities and that the DAC interface matches the host controller's communication protocol.

Part Context

This part belongs to the NCP5322 family of special purpose regulators from onsemi. It is categorized under power management ICs specifically tailored for switching controllers. The series focuses on delivering stable power to complex digital loads through synchronized multi-phase operation. It complements other onsemi PMIC solutions by offering integrated drive capabilities alongside digital control features.

Replacement Considerations

Public records indicate the NCP5332ADW is a related variant within the same product family. However, the NCP5332ADW utilizes a 28-SOIC package and is listed as obsolete. Verify pin compatibility and functional equivalence with the manufacturer before substitution.