LM22678QTJ-ADJ/NOPB datasheet by Texas Instruments

LM22678QTJ-ADJ/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM22678QTJ-ADJ/NOPB?
  The maximum input voltage that can be applied to the LM22678QTJ-ADJ/NOPB is 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I adjust the output voltage of the LM22678QTJ-ADJ/NOPB?
  The output voltage of the LM22678QTJ-ADJ/NOPB can be adjusted by connecting a resistor divider network between the output and the ADJ pin, and then connecting the center tap of the divider to the ADJ pin.
• What is the minimum input capacitance required for the LM22678QTJ-ADJ/NOPB?
  The minimum input capacitance required for the LM22678QTJ-ADJ/NOPB is 10uF, but it's recommended to use a higher value (e.g. 22uF) for better performance and stability.
• Can I use the LM22678QTJ-ADJ/NOPB in a high-temperature environment?
  The LM22678QTJ-ADJ/NOPB is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.
• How do I ensure the LM22678QTJ-ADJ/NOPB is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient input capacitance, and add a small ceramic capacitor (e.g. 10nF) between the output and ground.