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 minimize thermal resistance. A minimum of 2 oz copper thickness is recommended for optimal thermal performance.
To ensure reliable operation in high-temperature environments, it's essential to follow proper thermal design and layout guidelines, including providing adequate heat sinking, using thermal interface materials, and ensuring good airflow. Additionally, consider derating the device's power dissipation according to the ambient temperature.
Using a lower input voltage than the recommended 12V may affect the device's performance, including reduced output current capability, increased dropout voltage, and decreased efficiency. Consult the datasheet's electrical characteristics tables to determine the impact of lower input voltages on your specific application.
While the TP11368V/NOPB is a high-quality device, it's essential to evaluate its suitability for high-reliability or automotive applications. Texas Instruments offers other devices with enhanced reliability and automotive-grade qualifications, such as the TP11368Q/NOPB. Consult with a TI representative or review the device's qualification documentation to determine its suitability for your specific application.
To troubleshoot issues with the device's output voltage regulation, start by verifying the input voltage, output voltage, and load current. Check for proper PCB layout, decoupling, and filtering. Ensure that the device is operated within its recommended operating conditions, and consult the datasheet's application information and troubleshooting sections for guidance.
TP11368V/NOPB datasheet
by Texas Instruments
