RT9258GQW

Overview

The RT9258GQW is a synchronous step-down DC-DC controller manufactured by Richtek USA Inc. It operates with a fixed switching frequency of 500kHz and supports an input voltage range up to 24V. The device provides two independent output channels, featuring synchronous rectification for improved efficiency. It utilizes a 24-WFQFN exposed pad package suitable for surface mount applications.

Feature Summary

• Dual-channel synchronous buck controller architecture
• Integrated high-side and low-side gate drivers
• Fixed 500kHz switching frequency operation

Applications

• Point-of-load regulation in industrial systems
• Power supplies for embedded computing modules
• Telecommunications equipment power distribution

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance status prior to integration. Ensure storage conditions meet moisture sensitivity level requirements to prevent package damage during soldering processes.

Selection Notes

Select this controller for designs requiring dual isolated outputs from a single input source. Evaluate thermal performance based on the exposed pad thermal characteristics. Ensure external inductor and capacitor selections align with the 500kHz frequency constraints for optimal transient response.

Part Context

This component belongs to the Richtek PMIC portfolio focusing on multi-phase and dual-output power management solutions. It serves as a core control element in compact power stages where space efficiency and synchronized operation are critical design parameters.

Replacement Considerations

Official documentation indicates this product is obsolete. Consult manufacturer resources for verified substitute part numbers that maintain pin compatibility and electrical specifications.