LM2574M-ADJ/NOPB datasheet by Texas Instruments

LM2574M-ADJ/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM2574M-ADJ/NOPB?
  The maximum input voltage that can be applied to the LM2574M-ADJ/NOPB is 40V. Exceeding this voltage can cause damage to the device.
• How do I ensure the stability of the output voltage?
  To ensure the stability of the output voltage, it is recommended to use a minimum output capacitance of 10uF with an ESR of less than 1 ohm. Additionally, the output voltage should be decoupled with a 10uF capacitor to ground.
• What is the minimum input voltage required for the LM2574M-ADJ/NOPB to operate?
  The minimum input voltage required for the LM2574M-ADJ/NOPB to operate is 7V. However, the recommended minimum input voltage is 8V to ensure proper operation.
• Can I use the LM2574M-ADJ/NOPB in a high-temperature environment?
  The LM2574M-ADJ/NOPB is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It is recommended to derate the device's output current and voltage at high temperatures.
• How do I adjust the output voltage of the LM2574M-ADJ/NOPB?
  The output voltage of the LM2574M-ADJ/NOPB can be adjusted by using a resistive divider network between the output and the ADJ pin. The output voltage can be calculated using the formula: Vout = 1.23 x (1 + R1/R2), where R1 and R2 are the resistors in the divider network.