A 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure a minimum of 1 oz copper thickness and a thermal relief pattern under the device.
Implement a heat sink with a thermal interface material, ensure good airflow, and consider using a thermal shield or heat spreader. Monitor junction temperature and adjust the design accordingly.
Focus on the input filter design, ensuring a common-mode choke with a high impedance at the switching frequency, and a differential-mode filter with a low-pass characteristic.
Use a low-dropout linear regulator for the standby voltage, minimize the number of active components, and consider using a low-power mode or shutdown feature.
Implement a voltage monitor with a precise threshold, use a fast-acting OVP circuit, and consider adding a soft-start feature to prevent inrush currents.
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RURP8100 Overview
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