RT9173APM5

Overview

The RT9173APM5 is a peak 3A bus termination regulator manufactured by Richtek USA Inc. It operates with an input voltage range of 1.6V to 6V and provides a single adjustable output. The device is housed in a TO-263-5 (D²Pak) package, featuring five leads plus a tab. It is designed for applications requiring high current capacity and precise regulation, such as DDR bus termination.

Feature Summary

• Designed for high-current bus termination applications
• Adjustable output voltage capability
• Integrated thermal and protection features

Applications

• DDR Bus Termination Regulator
• Converter Power Management

Procurement Notes

Verify component status carefully as the RT9173APM5 is listed as obsolete or end-of-life in multiple distributor records. Confirm availability through authorized channels and check for valid replacement part numbers from Richtek Technology Corporation before finalizing procurement plans.

Selection Notes

Select this component for systems requiring a dedicated 3A regulator for memory bus termination. Ensure the design accommodates the TO-263-5 package footprint and thermal requirements. Verify that the adjustable output configuration meets the specific voltage needs of the target DDR interface.

Part Context

This part belongs to Richtek's specialized power management portfolio, specifically targeting high-performance digital circuits. It complements other LDO and regulator series like the RT9176 and RT9183 but is distinctively optimized for the higher current demands of bus termination rather than general low-dropout regulation.

Replacement Considerations

Consult official Richtek documentation for direct cross-reference part numbers. No specific substitute part numbers are confirmed in the provided public data.