RT8813DGQW

Overview

The RT8813DGQW is a synchronous buck DC-DC switching controller manufactured by Richtek USA Inc. It operates within an input voltage range of 4.5V to 26V and supports adjustable switching frequencies between 150kHz and 600kHz. The device utilizes a 24-WFQFN (4x4mm) package with exposed pad for surface mount installation. It provides a single positive output configured as a transistor driver stage. The component functions as a step-down converter topology suitable for efficient power management applications.

Feature Summary

• Integrated synchronous rectification architecture for enhanced conversion efficiency
• Supports external frequency synchronization and phase control capabilities
• Includes comprehensive protection features such as current limiting and soft-start functionality

Applications

• High-performance graphic microprocessor power delivery
• General computer system power regulation
• Point-of-load conversion in server infrastructure

Procurement Notes

Verify the specific suffix DGQW against official datasheets to confirm pinout and thermal pad configuration. Ensure compatibility with the target PCB footprint, specifically the 24-WQFN dimensions. Confirm RoHS compliance status if required by regional regulations. Cross-reference manufacturer part numbers with distributor listings to avoid counterfeit components during sourcing.

Selection Notes

Select this controller when designing systems requiring a wide input voltage range up to 26V. Consider its suitability for multi-phase configurations if higher current capacity is needed. Evaluate the thermal performance requirements given the WQFN package size. Ensure the application benefits from the integrated synchronous rectification and programmable frequency options available in this series.

Part Context

This component belongs to the RT8813 family of multi-phase PWM controllers optimized for demanding computing loads. It shares functional similarities with variants like the RT8813A and RT8813C, which support different active phase counts. These devices are engineered to meet the stringent transient response and efficiency standards required by modern digital logic processors.

Replacement Considerations

Direct substitutes include other models within the RT8813 series such as RT8813A or RT8813C, provided the phase count matches the design requirements. Verify that alternative packages maintain identical thermal and electrical characteristics. Consult official cross-reference lists for qualified replacements ensuring pin-to-pin compatibility.