P9025B-1AWGI

Overview

The P9025B-1AWGI is a Power Management IC (PMIC) manufactured by Renesas Electronics, designed for DDR4 Registered DIMM (RDIMM) and Load Reduced DIMM (LRDIMM) applications. It integrates four step-down DC/DC converters and three Low Dropout (LDO) regulators to support the power requirements of DDR4 memory modules. The device features programmable output voltages, independent sequencing control, and communication interfaces including I2C and SMBus. It includes comprehensive protection mechanisms such as over-voltage, under-voltage, and thermal shutdown, ensuring reliable operation in high-density server and storage environments.

Feature Summary

• Integrates multiple switching regulators and LDOs for efficient DDR4 power delivery
• Supports flexible output voltage programming and independent power sequencing
• Includes robust fault protection and status reporting via digital interface

Applications

• DDR4 RDIMM power management
• DDR4 LRDIMM power management
• Server memory subsystems
• High-density storage systems

Procurement Notes

Verify the specific suffix '1AWGI' against official Renesas documentation to confirm package type, temperature range, and tape-and-reel specifications. Ensure compatibility with target DDR4 module power profiles. Check for end-of-life notifications or alternative part recommendations from the manufacturer before finalizing procurement plans.

Selection Notes

Select this PMIC when designing DDR4 memory solutions requiring integrated power regulation with precise sequencing capabilities. Consider its I2C/SMBus interface for system monitoring and control. Evaluate thermal performance and board space constraints relative to its package options. Confirm that the integrated regulator outputs match the voltage and current requirements of the target DDR4 components.

Part Context

This component belongs to the P9025 series of PMICs optimized for DDR4 memory applications. It addresses the need for compact, efficient power solutions in modern server architectures. The series supports various DDR4 configurations, providing a standardized approach to memory power management across different platform designs.

Replacement Considerations

Consult Renesas official documentation for direct pin-to-pin replacements or functional equivalents within the P9025 family. Verify electrical parameters and interface compatibility before substituting.