L7986TR datasheet by STMicroelectronics

L7986TR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L7986TR can handle?
  The L7986TR can handle a maximum input voltage of 30V, but it's recommended to keep it below 28V for reliable operation.
• How do I ensure the L7986TR is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor (at least 10uF), and add a 10nF capacitor between the VIN and EN pins.
• What is the minimum input voltage required for the L7986TR to operate?
  The L7986TR can operate with an input voltage as low as 7V, but the output voltage regulation may not be guaranteed below 8V.
• Can I use the L7986TR in a high-temperature environment?
  The L7986TR is rated for operation up to 150°C, but it's recommended to derate the output current and input voltage to ensure reliable operation above 125°C.
• How do I calculate the output voltage of the L7986TR?
  The output voltage of the L7986TR is adjustable and can be calculated using the formula: Vout = 1.25 x (1 + R2/R1), where R1 and R2 are the resistors connected to the FB pin.