A good PCB layout for the MAX6854UK16D3+T involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce noise and EMI.
To ensure stability, make sure to follow the recommended component values and PCB layout, and add a 10nF capacitor between the VOUT and GND pins to prevent oscillation.
The MAX6854UK16D3+T can handle input voltages up to 18V, but it's recommended to keep the input voltage below 15V for optimal performance and reliability.
The MAX6854UK16D3+T is rated for operation up to 125°C, but it's recommended to derate the output current and voltage at higher temperatures to ensure reliability and prevent overheating.
To troubleshoot issues, check the input voltage, output voltage, and current, and verify that the PCB layout and component values match the recommended design. Also, check for signs of overheating, such as excessive temperature or current draw.