MP3389EY-LF-Z datasheet by Monolithic Power Systems

MP3389EY-LF-Z Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the MP3389EY-LF-Z can handle?
  The maximum input voltage is 28V, but it's recommended to keep it below 24V for optimal performance and reliability.
• How do I ensure the stability of the output voltage?
  To ensure stability, make sure to use the recommended output capacitor values and types, and keep the output voltage within the specified range. Also, ensure that the input voltage is within the recommended range and the input capacitor is properly sized.
• What is the maximum output current that the MP3389EY-LF-Z can provide?
  The maximum output current is 3A, but it's recommended to keep it below 2.5A for optimal performance and reliability.
• How do I adjust the output voltage?
  The output voltage can be adjusted by using the FB (feedback) pin and an external resistor divider network. The datasheet provides a formula to calculate the required resistor values.
• What is the purpose of the EN (enable) pin?
  The EN pin is used to enable or disable the regulator. When the EN pin is pulled low, the regulator is disabled, and when it's pulled high, the regulator is enabled.