LM2940IMP-15 datasheet by Texas Instruments

LM2940IMP-15 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM2940IMP-15?
  The maximum input voltage that can be applied to the LM2940IMP-15 is 26V, but it's recommended to keep it below 20V for reliable operation.
• Can I use the LM2940IMP-15 in a high-temperature environment?
  The LM2940IMP-15 is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and input voltage at high temperatures.
• How do I calculate the output voltage tolerance of the LM2940IMP-15?
  The output voltage tolerance of the LM2940IMP-15 is ±2% over the entire operating temperature range. This means that the output voltage can vary by up to 2% of the nominal output voltage (15V) due to manufacturing variations and operating conditions.
• What is the minimum input voltage required for the LM2940IMP-15 to regulate the output voltage?
  The minimum input voltage required for the LM2940IMP-15 to regulate the output voltage is around 17V, but it's recommended to keep the input voltage at least 2V higher than the output voltage for reliable operation.
• Can I use the LM2940IMP-15 in a switching power supply application?
  No, the LM2940IMP-15 is a linear voltage regulator and is not suitable for use in switching power supply applications. It's designed for use in linear power supply applications where a low-dropout voltage regulator is required.