RT8243BZQW

Overview

The RT8243BZQW is a dedicated notebook power system controller manufactured by Richtek. It features two output channels with an input voltage range of 5.5V to 25V and adjustable output voltages from 2V to 5.5V. Designed for surface mount installation, the component operates within a temperature range of -40°C to 85°C. It utilizes a 20-WQFN package with dimensions of 3x3 mm and includes an exposed pad for thermal management.

Feature Summary

• Dual-output architecture designed specifically for notebook power systems
• Integrated control logic for managing multiple power rails
• Surface-mount construction optimized for compact electronic assemblies

Applications

• Notebook computer power distribution
• Multi-rail power supply controllers
• Portable computing device power management

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as moisture sensitivity requires proper handling. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing design integration.

Selection Notes

Select this component when designing dual-rail power architectures for portable computers requiring wide input voltage tolerance. Ensure the application environment remains within the specified operating temperature limits. Verify that the required output voltage ranges align with the 2V to 5.5V specification for compatible downstream loads.

Part Context

This part belongs to the RT8243 series of dedicated regulators intended for notebook applications. It serves as a central controller for coordinating power delivery in mobile computing platforms. The WQFN packaging supports high-density PCB layouts typical in modern ultrabook and laptop designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.