L4941BDT datasheet by STMicroelectronics

L4941BDT Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the L4941BDT?
  The maximum input voltage that can be applied to the L4941BDT is 30V, but it's recommended to keep it below 28V for reliable operation.
• How do I ensure the L4941BDT 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 keep the input voltage ripple below 1V.
• Can I use the L4941BDT in a high-temperature environment?
  Yes, the L4941BDT can operate up to 150°C, but the maximum junction temperature (Tj) should not exceed 150°C. Derate the output current and input voltage accordingly to ensure reliable operation.
• How do I calculate the output voltage of the L4941BDT?
  The output voltage (Vout) can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (2.5V), R1 and R2 are the resistors connected to the output voltage adjustment pin.
• What is the minimum input voltage required for the L4941BDT to operate?
  The minimum input voltage required for the L4941BDT to operate is 7V, but it's recommended to keep it above 8V for reliable operation.