A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the power and ground traces as short as possible and use a common mode choke to reduce EMI.
Use a heat sink with a thermal conductivity of at least 1 W/m-K and ensure good airflow around the device. Also, derate the output current according to the temperature derating curve in the datasheet.
The maximum allowable voltage drop across the input capacitors is 1.5V. Exceeding this value may cause instability or oscillation.
No, it's not recommended to use a different type of capacitor. The ceramic capacitor is specifically chosen for its low ESR and high frequency characteristics, which are critical for the PA1A-PS's stability and performance.
Check the PCB layout for any mistakes or inconsistencies, ensure proper decoupling and filtering, and verify that the input voltage and current are within the recommended specifications. Also, check for any signs of overheating or physical damage.
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