STMicroelectronics recommends a PCB layout with a thermal pad connected to a large copper area on the bottom layer, and multiple vias to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended.
To ensure reliable operation at high temperatures, it's essential to follow the recommended thermal design guidelines, use a suitable thermal interface material, and consider derating the device's power dissipation according to the temperature derating curve provided in the datasheet.
Although the datasheet doesn't explicitly state the maximum allowed voltage on the input pins, it's generally recommended to limit the input voltage to 5.5V to prevent damage to the internal ESD protection diodes.
While the LET9060S is not specifically designed for high-frequency switching applications, it can be used in such scenarios with proper design considerations, such as minimizing parasitic inductance and capacitance, and ensuring adequate decoupling and filtering.
To troubleshoot issues with the LET9060S, start by verifying the power supply voltage, checking for proper PCB layout and thermal design, and ensuring that the device is operated within its recommended operating conditions. If issues persist, consult the STMicroelectronics support resources or contact their technical support team.
LET9060S datasheet
by STMicroelectronics
