A good PCB layout for the MAX1697TEUT+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 parasitic inductance and capacitance.
To ensure stability, make sure to follow the recommended component values and PCB layout, and add a small capacitor (e.g., 10nF) between the VIN and GND pins to filter out noise and prevent oscillation.
The MAX1697TEUT+T can handle input voltages up to 28V, but it's recommended to keep the input voltage below 24V for optimal performance and reliability.
The MAX1697TEUT+T is rated for operation up to 125°C, but it's recommended to derate the output current and input 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 component values and PCB layout match the recommended design. Also, check for signs of overheating, such as excessive temperature or burning smells.