LM3485MM datasheet by Texas Instruments

LM3485MM Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LM3485MM can handle?
  The LM3485MM can handle input voltages up to 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I ensure the LM3485MM is stable and doesn't oscillate?
  To ensure stability, make sure to use the recommended output capacitor value and type, and keep the input capacitor value below 10uF. Also, ensure the PCB layout is well-designed and follows good practices.
• What is the minimum input voltage required for the LM3485MM to operate?
  The minimum input voltage required for the LM3485MM to operate is 7V, but it's recommended to keep it above 8V for reliable operation.
• Can I use the LM3485MM in a high-temperature environment?
  The LM3485MM is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as the temperature increases to ensure reliable operation.
• How do I calculate the output voltage of the LM3485MM?
  The output voltage of the LM3485MM can be calculated using the formula: Vout = 1.24 * (1 + R2/R1), where R1 and R2 are the feedback resistors.