L4931CD120-TR datasheet by STMicroelectronics

L4931CD120-TR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L4931CD120-TR can handle?
  The maximum input voltage is 30V, but it's recommended to keep it below 25V 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 (Equivalent Series Resistance) of less than 1 ohm, and a minimum input capacitance of 1uF with an ESR of less than 5 ohms.
• What is the maximum output current that the L4931CD120-TR can provide?
  The maximum output current is 1.2A, but it's recommended to keep it below 1A for reliable operation and to prevent overheating.
• How do I protect the L4931CD120-TR from overheating?
  Use a heat sink with a thermal resistance of less than 20°C/W, and ensure good airflow around the device. Also, keep the ambient temperature below 70°C.
• Can I use the L4931CD120-TR in a high-temperature environment?
  The L4931CD120-TR is rated for operation up to 150°C, but the maximum junction temperature is 125°C. Derate the output current and input voltage to ensure reliable operation at high temperatures.