Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as keeping the input and output traces short and separate, using a solid ground plane, and minimizing parasitic inductance.
To ensure stability, follow the recommended component values and PCB layout, and make sure to decouple the input and output with capacitors. Additionally, ensure that the output capacitor is properly sized and has a low ESR to prevent oscillations.
The LM3687TL-1812/NOPB is rated for operation up to 125°C, but it's recommended to derate the output current and voltage at higher temperatures to ensure reliable operation. Consult the datasheet for thermal derating curves.
While the datasheet recommends a specific inductor value and type, you can use a different value or type as long as it meets the required inductance and current rating. However, this may affect the converter's performance and efficiency. Consult the datasheet and application notes for guidance on inductor selection.
To troubleshoot issues, start by checking the input voltage, output voltage, and current. Verify that the component values and PCB layout match the recommended design. Use an oscilloscope to measure the output voltage ripple and switching frequency. Consult the datasheet and application notes for troubleshooting guides and common pitfalls.
Trust Checks
This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
LM3687TL-1812/NOPB Overview
Use the download button to access the LM3687TL-1812/NOPB schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like LM368,
or try a keyword search, such as Switching Regulator or Controllers
About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
