Richtek provides a recommended PCB layout in their application note ANI-45, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
Richtek recommends using a combination of capacitors and inductors to filter the output voltage. The application note ANI-45 provides a detailed design guide, including equations and component selection criteria, to help engineers optimize the output filter for their specific application.
Although not explicitly stated in the datasheet, Richtek recommends keeping the input voltage ripple below 1% to ensure stable operation and prevent damage to the device. Excessive input voltage ripple can lead to reduced efficiency, increased noise, and decreased reliability.
While the RT6190GGQW is rated for operation up to 85°C, Richtek recommends derating the output current and power dissipation at higher temperatures to ensure reliable operation. The application note ANI-45 provides guidance on thermal derating and heat sink design for high-temperature applications.
Richtek provides a troubleshooting guide in their application note ANI-45, which covers common issues, possible causes, and recommended solutions. Additionally, engineers can consult the Richtek support team for further assistance and guidance.
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RT6190GGQW Overview
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