L9848 datasheet by STMicroelectronics

L9848 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L9848 can handle?
  The L9848 can handle a maximum input voltage of 40V, but it's recommended to keep it below 36V for reliable operation.
• How do I ensure the L9848 is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor, and add a compensation network as described in the datasheet.
• What is the minimum ESR (Equivalent Series Resistance) required for the output capacitor?
  The minimum ESR required for the output capacitor is 0.1 ohms, but it's recommended to use a capacitor with an ESR of 0.05 ohms or less for optimal performance.
• Can I use the L9848 in a high-temperature environment?
  Yes, the L9848 can operate in a high-temperature environment, but its performance may degrade above 125°C. Make sure to follow the recommended thermal design guidelines to ensure reliable operation.
• How do I calculate the output voltage of the L9848?
  The output voltage of the L9848 can be calculated using the formula: Vout = Vref x (1 + R2/R1), where Vref is the internal reference voltage, and R1 and R2 are the feedback resistors.