L7986A datasheet by STMicroelectronics

L7986A Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L7986A can handle?
  The L7986A can handle input voltages up to 30V, but it's recommended to keep it below 24V for optimal performance and reliability.
• How do I choose the right output capacitor for the L7986A?
  The output capacitor should be chosen based on the output voltage and current requirements. A general rule of thumb is to use a capacitor with a value between 10uF to 22uF, and a voltage rating of at least 2x the output voltage.
• What is the purpose of the EN pin on the L7986A?
  The EN (Enable) pin is used to turn the regulator on or off. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled. This pin can be used to implement power sequencing or to turn off the regulator when not in use.
• How do I calculate the output voltage of the L7986A?
  The output voltage of the L7986A can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (1.25V), and R1 and R2 are the resistors used to set the output voltage.
• What is the maximum output current of the L7986A?
  The maximum output current of the L7986A is 3A, but it's recommended to keep the output current below 2.5A for optimal performance and reliability.