Texas Instruments provides a recommended layout and placement guide in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI and noise.
To ensure stability, follow the recommended component values and layout guidelines, and make sure the output capacitor has a low ESR (Equivalent Series Resistance). Additionally, adding a small ceramic capacitor (e.g., 10nF) between the VOUT and GND pins can help improve stability.
Although the datasheet specifies a maximum input voltage of 18V, it's recommended to limit the input voltage to 15V to ensure reliable operation and prevent damage to the IC.
The TPS65137ASDSCR is rated for operation up to 125°C, but it's essential to consider the thermal design and ensure proper heat dissipation to prevent overheating. A thermal pad or heat sink may be necessary for high-temperature applications.
Start by verifying the input voltage, output voltage, and current. Check the PCB layout and component values against the recommended design. Use an oscilloscope to monitor the output voltage and input voltage ripple. Consult the datasheet and application notes for troubleshooting guidelines and common pitfalls.
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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.
