Texas Instruments recommends a thermal pad on the bottom of the package, connected to a copper plane on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended for the thermal plane.
To ensure reliable operation in high-temperature environments, it's essential to follow the recommended operating temperature range (-40°C to 125°C) and consider the device's power dissipation and thermal resistance. Additionally, ensure proper PCB design, component selection, and thermal management.
To minimize EMI and RFI, use a shielded enclosure, and ensure the PCB design includes a solid ground plane, decoupling capacitors, and a low-pass filter. Additionally, consider using a metal shield or a conductive coating on the PCB to reduce radiation.
To troubleshoot output voltage regulation issues, check the input voltage, output load, and feedback resistors. Ensure the device is properly configured, and the output voltage is within the specified range. Use an oscilloscope to monitor the output voltage and identify any oscillations or noise.
Operating the device at the maximum rated current can lead to increased power dissipation, reduced lifespan, and potential thermal shutdown. Ensure proper thermal management, and consider derating the current to ensure reliable operation.