TPS65137ASDSCR datasheet by Texas Instruments

TPS65137ASDSCR Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the TPS65137ASDSCR?
  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.
• How do I ensure the TPS65137ASDSCR is stable and doesn't oscillate?
  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.
• What is the maximum input voltage that the TPS65137ASDSCR can handle?
  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.
• Can I use the TPS65137ASDSCR in a high-temperature environment?
  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.
• How do I troubleshoot issues with the TPS65137ASDSCR, such as output voltage instability or failure to start up?
  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.