RT9173AGL5

Overview

The RT9173AGL5 is a special purpose voltage regulator IC designed for DDR bus termination applications. It converts input voltage supplies ranging from 1.6V to 6V into a desired output voltage adjusted by two external voltage divider resistors. The device features a peak current capability of 3A and provides a single adjustable output. It operates within an ambient temperature range of -40°C to 125°C and is housed in a TO-252-5 surface mount package.

Feature Summary

• Converts wide input voltage ranges (1.6V to 6V) into precise, adjustable output voltages suitable for DDR bus termination.
• Delivers high peak current capability of 3A to support demanding load requirements.
• Utilizes external voltage divider resistors for flexible output voltage configuration.

Applications

• DDR memory bus termination
• Voltage regulation for digital logic circuits requiring adjustable termination
• Power management in systems utilizing DDR interfaces

Procurement Notes

Verify component status as the RT9173AGL5 is listed as obsolete and no longer manufactured by Richtek USA Inc. Source availability may be limited to existing stock or third-party distributors. Confirm RoHS compliance and lead-free status with the supplier prior to procurement. Evaluate alternative components if long-term supply assurance is required for production.

Selection Notes

Select this component when designing circuits that require a dedicated bus termination regulator with adjustable output voltage derived from inputs between 1.6V and 6V. Ensure the design accommodates the TO-252-5 package constraints and thermal requirements for a 3A peak current. Verify that external resistor values align with the desired output voltage specification within the operational temperature range of -40°C to 125°C.

Part Context

The RT9173AGL5 belongs to the PMIC - Voltage Regulators - Special Purpose family manufactured by Richtek Technology Corporation. It is specifically categorized as a converter for DDR bus termination. The device integrates functionality to regulate voltage levels critical for stable data transmission in memory subsystems, distinguishing it from general-purpose linear regulators through its specialized application focus and current handling capabilities.

Replacement Considerations

Check manufacturer documentation for officially confirmed substitute part numbers. Since the RT9173AGL5 is obsolete, identify equivalent devices from the same or other manufacturers that match the TO-252-5 package, 3A peak current, and adjustable output voltage range specifications.