LTC3490ES8#PBF datasheet by Linear Technology

LTC3490ES8#PBF Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LTC3490 can handle?
  The maximum input voltage that the LTC3490 can handle is 15V, but it's recommended to keep it below 12V for optimal performance.
• How do I optimize the inductor selection for the LTC3490?
  To optimize the inductor selection, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to choose an inductor with a saturation current rating above the peak current of the converter, and a DC resistance that minimizes losses.
• What is the recommended PCB layout for the LTC3490?
  For optimal performance, keep the input and output capacitors close to the IC, and use a solid ground plane to reduce noise. Keep the high-current paths short and wide, and avoid routing sensitive signals near the inductor.
• How do I troubleshoot the LTC3490 if it's not working as expected?
  Start by checking the input voltage, output voltage, and current. Verify that the inductor is properly selected and the PCB layout is correct. Use an oscilloscope to check for switching noise, and ensure that the feedback loop is stable.
• Can I use the LTC3490 in a high-temperature environment?
  The LTC3490 is rated for operation up to 125°C, but thermal derating may be necessary for high-temperature applications. Ensure that the device is properly heatsinked and that the PCB is designed to handle high temperatures.