L7915ACV datasheet by STMicroelectronics

L7915ACV Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L7915ACV can handle?
  The maximum input voltage for the L7915ACV is 35V, but it's recommended to keep it below 25V for reliable operation.
• How do I ensure the L7915ACV is stable and doesn't oscillate?
  To ensure stability, make sure to use a minimum output capacitance of 10uF, and keep the input capacitance as close to the regulator as possible. Also, use a low-ESR capacitor for the output.
• What is the dropout voltage of the L7915ACV?
  The dropout voltage of the L7915ACV is around 2V, which means the input voltage should be at least 2V higher than the output voltage for proper regulation.
• Can I use the L7915ACV in a high-temperature environment?
  The L7915ACV is rated for operation up to 125°C, but its performance may degrade at high temperatures. Make sure to derate the output current and consider using a heat sink if operating in high-temperature environments.
• How do I protect the L7915ACV from input voltage surges?
  Use a TVS (transient voltage suppressor) diode or a varistor in parallel with the input capacitor to protect the L7915ACV from input voltage surges and spikes.