LM2576T-ADJ/LF03 datasheet by Texas Instruments

LM2576T-ADJ/LF03 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM2576T-ADJ/LF03?
  The maximum input voltage is 40V, but it's recommended to keep it below 35V for reliable operation.
• How do I ensure the output voltage is stable and regulated?
  To ensure a stable output voltage, make sure to use a suitable output capacitor (e.g., 10uF to 22uF) and a minimum load of 10mA. Also, keep the input voltage ripple below 1V.
• What is the minimum input voltage required for the LM2576T-ADJ/LF03 to operate?
  The minimum input voltage is 7V, but it's recommended to keep it above 8V for reliable operation.
• Can I use the LM2576T-ADJ/LF03 in a high-temperature environment?
  The LM2576T-ADJ/LF03 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 adjust the output voltage of the LM2576T-ADJ/LF03?
  The output voltage can be adjusted by using a resistor divider network between the output and the ADJ pin. The formula to calculate the output voltage is: Vout = 1.23 x (R1 + R2) / R2.