A 4-layer PCB with a solid ground plane and thermal vias is recommended. The device should be placed near a thermal pad or a heat sink to dissipate heat efficiently.
Monitor the input voltage, output voltage, and output current to ensure they are within the specified ranges. Also, ensure the device is operated within the recommended ambient temperature range.
A low-ESR ceramic capacitor with a value of 10uF to 22uF is recommended for input decoupling. The capacitor should be placed as close to the device as possible.
Use a shielded inductor, keep the switching node (SW) away from sensitive nodes, and use a common-mode choke to reduce EMI. Also, ensure good PCB layout practices, such as keeping the power traces away from sensitive signals.
A low-ESR ceramic capacitor with a value of 22uF to 47uF is recommended for output filtering. The capacitor should be placed as close to the output pin as possible.
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RT5797AHGQWA Overview
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