LP2981A-50DBVR datasheet by Texas Instruments

LP2981A-50DBVR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LP2981A-50DBVR?
  The maximum input voltage that can be applied to the LP2981A-50DBVR is 12V. Exceeding this voltage may damage the device.
• How do I ensure stability of the output voltage?
  To ensure stability of the output voltage, it is recommended to use a minimum output capacitance of 2.2uF and a maximum ESR of 1 ohm. Additionally, the input capacitor should be at least 1uF with an ESR of 0.1 ohm.
• What is the minimum input voltage required for the LP2981A-50DBVR to operate?
  The minimum input voltage required for the LP2981A-50DBVR to operate is 2.7V. However, the device can operate down to 2.5V with reduced performance.
• Can I use the LP2981A-50DBVR in a high-temperature environment?
  The LP2981A-50DBVR is rated for operation up to 125°C. However, the device's performance may degrade at high temperatures, and the output voltage may drop. It is recommended to derate the output current at high temperatures.
• How do I calculate the output voltage of the LP2981A-50DBVR?
  The output voltage of the LP2981A-50DBVR can be calculated using the formula: Vout = 50mV * (1 + R1/R2), where R1 and R2 are the resistors used in the feedback network.