L78L12ABZ datasheet by STMicroelectronics

L78L12ABZ Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L78L12ABZ can handle?
  The maximum input voltage for the L78L12ABZ is 35V, but it's recommended to keep it below 25V for reliable operation.
• How do I ensure the L78L12ABZ is stable and doesn't oscillate?
  To ensure stability, use a minimum output capacitance of 2.2uF, and keep the input and output capacitors close to the regulator. Also, use a low-ESR capacitor for the output.
• What is the dropout voltage of the L78L12ABZ?
  The dropout voltage of the L78L12ABZ 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 L78L12ABZ in a high-temperature environment?
  The L78L12ABZ is rated for operation up to 125°C, but its performance may degrade at high temperatures. Consider using a heat sink or a thermally-enhanced package for high-temperature applications.
• How do I protect the L78L12ABZ from input voltage surges?
  Use a TVS (transient voltage suppressor) diode or a varistor in parallel with the input capacitor to protect the regulator from voltage surges and spikes.