RT6338CGQUF

Overview

The RT6338CGQUF is a dual-output power management IC from Richtek, combining a synchronous buck converter and a low-dropout linear regulator. It operates with an input voltage range of 5.2V to 23V and features a fixed switching frequency of 500kHz. The device utilizes ACOT control architecture for fast transient response. It is housed in a compact 23-UQFN (FC) package measuring 3x3 mm, suitable for space-constrained applications requiring efficient power conversion.

Feature Summary

• Integrates a synchronous buck converter and a linear regulator in a single package
• Utilizes Adaptive COT control for enhanced stability and transient performance
• Includes comprehensive protection mechanisms such as overcurrent and thermal shutdown

Applications

• Portable electronic devices requiring mixed regulation topologies
• Industrial equipment with wide input voltage ranges
• Communication infrastructure power systems

Procurement Notes

Verify the specific suffix CGQUF against official Richtek documentation to confirm pinout and electrical characteristics. Ensure compatibility with the target PCB footprint, specifically the 23-UQFN (3x3mm) package. Confirm that the required output voltages align with the adjustable buck and fixed LDO specifications provided in the datasheet before ordering.

Selection Notes

Select this component when a design requires both high-efficiency switching regulation and low-noise linear regulation within a limited board area. The wide input voltage range supports various supply sources. Consider the thermal performance of the QFN package relative to the expected load current and ambient temperature conditions during system integration.

Part Context

This part belongs to the RT6338 series, which offers integrated power solutions for portable and industrial applications. The series combines switching and linear technologies to optimize efficiency and noise performance. The CGQUF variant specifically denotes the package type and temperature grade defined by the manufacturer for mass production.

Replacement Considerations

Check for direct substitutes like the RT6338BGQUF or RT6338AHGQUF if pinouts are compatible. Verify that alternative parts maintain the same 23-UQFN footprint and electrical ratings. Consult official cross-reference lists to ensure functional equivalence without redesigning the power stage.