LM809M3-4.38/NOPB datasheet by Texas Instruments

LM809M3-4.38/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LM809M3-4.38/NOPB can handle?
  The maximum input voltage is 35V, but it's recommended to keep it below 30V for reliable operation.
• How do I ensure the stability of the output voltage?
  To ensure stability, use a minimum output capacitance of 10uF with an ESR of 0.1-10 ohms, and a minimum input capacitance of 1uF with an ESR of 0.1-10 ohms.
• What is the thermal shutdown temperature of the LM809M3-4.38/NOPB?
  The thermal shutdown temperature is typically around 150°C, but it can vary depending on the specific device and operating conditions.
• Can I use the LM809M3-4.38/NOPB in a high-temperature environment?
  The LM809M3-4.38/NOPB is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at higher temperatures to ensure reliable operation.
• How do I calculate the power dissipation of the LM809M3-4.38/NOPB?
  Power dissipation can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.