A good PCB layout for the LMZ23603TZ/NOPB involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure the LMZ23603TZ/NOPB operates within its safe operating area (SOA), monitor the device's junction temperature, input voltage, and output current. Make sure the device is not exposed to excessive temperatures, and the input voltage and output current are within the recommended operating ranges.
The recommended input capacitor value for the LMZ23603TZ/NOPB is 10uF to 22uF, with a voltage rating of 6.3V or higher. A low-ESR ceramic capacitor, such as an X5R or X7R type, is recommended for optimal performance.
The LMZ23603TZ/NOPB is rated for operation up to 125°C, but its performance may degrade at high temperatures. If you need to operate the device in a high-temperature environment, ensure you provide adequate heat sinking and consider derating the device's performance.
To troubleshoot issues with the LMZ23603TZ/NOPB, start by checking the input voltage, output voltage, and output current. Verify that the device is properly soldered and the PCB layout is correct. Check for signs of overheating, such as excessive temperature or thermal shutdown. Consult the datasheet and application notes for guidance on troubleshooting specific issues.
LMZ23603TZ/NOPB datasheet
by Texas Instruments
