Texas Instruments recommends a 2-layer PCB with a solid ground plane on the bottom layer and a thermal relief pattern on the top layer to ensure optimal thermal performance.
To ensure reliable operation in high-temperature environments, it is recommended to derate the output current and voltage according to the thermal derating curve provided in the datasheet, and to ensure good airflow around the device.
Texas Instruments recommends using X5R or X7R ceramic capacitors with a voltage rating of at least 10V for the input and output capacitors, with a capacitance value of 10uF to 22uF for the input capacitor and 4.7uF to 10uF for the output capacitor.
To troubleshoot issues with the device not turning on or not regulating properly, check the input voltage, output voltage, and enable pin voltage to ensure they are within the recommended operating ranges, and verify that the input and output capacitors are properly connected and of the recommended type and value.
Texas Instruments recommends a soldering profile with a peak temperature of 260°C, a dwell time above 217°C of 30-60 seconds, and a total process time of 3-5 minutes to ensure reliable solder joints.