L7818ACV datasheet by STMicroelectronics

L7818ACV Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L7818ACV can handle?
  The L7818ACV can handle a maximum input voltage of 35V, but it's recommended to keep it below 25V for reliable operation.
• How do I calculate the output voltage tolerance of the L7818ACV?
  The output voltage tolerance of the L7818ACV is typically ±4% of the nominal output voltage (18V). So, the output voltage can vary between 17.28V and 18.72V.
• What is the minimum input voltage required for the L7818ACV to operate?
  The minimum input voltage required for the L7818ACV to operate is around 10V, but it's recommended to keep it above 12V for reliable operation.
• Can I use the L7818ACV in a high-temperature environment?
  The L7818ACV is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.
• How do I ensure the stability of the L7818ACV output voltage?
  To ensure the stability of the L7818ACV output voltage, it's recommended to use a minimum output capacitance of 10uF and a maximum ESR of 5 ohms. Additionally, the input voltage should be well-regulated and free of noise.