LM2936Z-5.0/LFT3 datasheet by Texas Instruments

LM2936Z-5.0/LFT3 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM2936Z-5.0/LFT3?
  The maximum input voltage that can be applied to the LM2936Z-5.0/LFT3 is 15V, but it's recommended to keep it below 12V for reliable operation.
• Can I use the LM2936Z-5.0/LFT3 as a voltage regulator for a high-current application?
  While the LM2936Z-5.0/LFT3 can handle up to 500mA of output current, it's not recommended for high-current applications due to thermal limitations. For high-current applications, consider using a more suitable voltage regulator or a switching regulator.
• How do I ensure the output voltage of the LM2936Z-5.0/LFT3 remains stable over temperature and load changes?
  To ensure stable output voltage, use a high-quality output capacitor with low ESR (Equivalent Series Resistance) and a minimum capacitance of 10uF. Additionally, consider adding a noise-reducing capacitor (e.g., 10nF) between the output and ground pins.
• Can I use the LM2936Z-5.0/LFT3 as a dropout regulator?
  No, the LM2936Z-5.0/LFT3 is not designed as a dropout regulator. It has a minimum dropout voltage of around 2V, which means the input voltage must be at least 2V higher than the output voltage for proper regulation.
• How do I calculate the power dissipation of the LM2936Z-5.0/LFT3?
  Power dissipation (PD) can be calculated using the formula: PD = (VIN - VOUT) x IOUT. Make sure to consider the maximum junction temperature (TJ) and thermal resistance (RθJA) when calculating the power dissipation to ensure reliable operation.