L78L08ACUTR datasheet by STMicroelectronics

L78L08ACUTR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L78L08ACUTR can handle?
  The maximum input voltage for the L78L08ACUTR is 35V, but it's recommended to keep it below 30V for reliable operation.
• How do I ensure the output voltage is stable and regulated?
  To ensure a stable output voltage, make sure to use a suitable input capacitor (e.g., 10uF) and output capacitor (e.g., 10uF to 100uF) as close to the regulator as possible. Also, keep the input voltage at least 2V higher than the output voltage.
• What is the dropout voltage of the L78L08ACUTR?
  The dropout voltage of the L78L08ACUTR is typically around 1.5V to 2V, which means the input voltage should be at least 1.5V to 2V higher than the output voltage for proper regulation.
• Can I use the L78L08ACUTR in a high-temperature environment?
  The L78L08ACUTR is rated for operation up to 125°C, but its performance may degrade at high temperatures. Be sure to check the datasheet for thermal derating information and consider using a heat sink if necessary.
• How do I protect the L78L08ACUTR from input voltage surges or spikes?
  To protect the regulator from input voltage surges or spikes, consider adding a transient voltage suppressor (TVS) diode or a voltage clamp circuit at the input. This can help prevent damage to the regulator and ensure reliable operation.