LP2985-25DBVRG4 datasheet by Texas Instruments

LP2985-25DBVRG4 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LP2985-25DBVRG4?
  The maximum input voltage that can be applied to the LP2985-25DBVRG4 is 12V, but it's recommended to keep it below 10V for optimal performance and to prevent overheating.
• How do I ensure the LP2985-25DBVRG4 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 2.2uF), and keep the input capacitor (if used) close to the VIN pin. Also, avoid using long traces and minimize the distance between the input and output capacitors.
• Can I use the LP2985-25DBVRG4 in a high-temperature environment?
  The LP2985-25DBVRG4 is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's recommended to derate the output current and ensure proper heat sinking to prevent overheating.
• How do I calculate the output voltage tolerance of the LP2985-25DBVRG4?
  The output voltage tolerance of the LP2985-25DBVRG4 is typically ±2% over the entire operating range. To calculate the output voltage tolerance, multiply the nominal output voltage (2.5V) by the tolerance percentage (2%). For example, the output voltage tolerance would be ±0.05V.
• Can I use the LP2985-25DBVRG4 in a battery-powered device?
  Yes, the LP2985-25DBVRG4 is suitable for battery-powered devices due to its low quiescent current (IQ) of 10uA. However, ensure that the input voltage is within the recommended range and that the device is properly shutdown when not in use to minimize power consumption.