LM5035BMH/NOPB datasheet by Texas Instruments

LM5035BMH/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the LM5035BMH/NOPB?
  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 away from each other, using a solid ground plane, and minimizing vias and thermal reliefs.
• How do I ensure the LM5035BMH/NOPB is properly thermally managed?
  The LM5035BMH/NOPB has a thermal pad on the bottom of the package, which should be connected to a thermal plane on the PCB. Ensure good thermal conductivity by using a thermal interface material (TIM) and a heat sink if necessary. Also, follow the recommended operating temperature range and power dissipation guidelines.
• What is the maximum input voltage that can be applied to the LM5035BMH/NOPB?
  The absolute maximum input voltage rating for the LM5035BMH/NOPB is 42V, but the recommended operating input voltage range is 12V to 38V. Exceeding the maximum input voltage can damage the device.
• Can I use the LM5035BMH/NOPB in a high-reliability or automotive application?
  Yes, the LM5035BMH/NOPB is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard for automotive grade and is also suitable for industrial and medical applications that require high reliability.
• How do I troubleshoot issues with the LM5035BMH/NOPB, such as oscillations or instability?
  Start by checking the PCB layout and ensuring that it follows the recommended layout guidelines. Verify that the input and output capacitors are properly selected and placed. Check for any signs of overheating or thermal issues. Use an oscilloscope to monitor the input and output waveforms and look for any signs of oscillation or instability.