LP2904DR datasheet by Texas Instruments

LP2904DR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LP2904DR can handle?
  The LP2904DR can handle input voltages up to 30V, but it's recommended to keep it below 24V for optimal performance and to prevent overheating.
• How do I ensure the LP2904DR is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended layout and component placement guidelines, use a sufficient output capacitor, and add a 10nF-100nF capacitor between the VIN and GND pins to filter out noise.
• What is the minimum input voltage required for the LP2904DR to operate?
  The LP2904DR can operate with input voltages as low as 7V, but the output voltage regulation may not be as accurate below 10V.
• Can I use the LP2904DR in a high-temperature environment?
  The LP2904DR is rated for operation up to 125°C, but its performance may degrade above 85°C. Make sure to provide adequate heat sinking and consider derating the output current at high temperatures.
• How do I calculate the output voltage of the LP2904DR?
  The output voltage of the LP2904DR is determined by the resistor divider network between the VOUT and ADJ pins. Use the formula: VOUT = 1.23V x (1 + R1/R2), where R1 and R2 are the resistors in the divider network.