RT9089AGQW

Overview

The RT9089AGQW is a sink/source tracking termination regulator manufactured by Richtek Technology Corporation. Designed for DDR memory applications, it functions as a precision termination voltage source and sink. The device ensures signal integrity by maintaining accurate termination levels relative to the supply voltage. It operates within standard industrial temperature ranges and utilizes surface-mount packaging suitable for automated assembly processes in electronic systems requiring reliable DDR bus termination.

Feature Summary

• Provides both sourcing and sinking capabilities for precise DDR termination control
• Tracks input voltage to maintain accurate termination levels dynamically
• Optimized for high-speed digital signal integrity in memory interfaces

Applications

• DDR SDRAM termination circuits
• High-speed memory module design
• Computer motherboard power management

Procurement Notes

Verify the manufacturer designation carefully, as sources may list Richtek Technology Corporation or Richtek USA Inc. Confirm the package type matches your PCB footprint requirements. Check RoHS compliance status if required by your manufacturing standards. Ensure the specific suffix aligns with your bill of materials. Validate datasheet revisions against current production versions.

Selection Notes

Select this component when bidirectional current capability is required for DDR termination. Compare performance against dedicated sink-only regulators if sourcing current is not needed. Evaluate thermal dissipation requirements based on expected load currents. Consider pin compatibility with existing designs using similar termination ICs from the same family.

Part Context

This part belongs to Richtek's portfolio of power management integrated circuits focused on memory interface solutions. It complements other termination regulators like the RT2568 and RT9088. These devices address the specific needs of modern computing platforms requiring stable and responsive termination voltages for data buses.

Replacement Considerations

Public confirmed substitute part numbers include RT2568GQW and RT9088GQW. Verify electrical specifications and pinout compatibility before substitution. Ensure the alternative device meets the same thermal and performance requirements for your specific application.