MP24892DJ-LF-Z datasheet by Monolithic Power Systems

MP24892DJ-LF-Z Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  A good PCB layout for the MP24892DJ-LF-Z should include a solid ground plane, separate analog and digital grounds, and a decoupling capacitor (e.g., 10uF) close to the VIN pin. Additionally, keep the input and output capacitors close to the IC and use short, wide traces for the power paths.
• How do I ensure stability and prevent oscillations in the output voltage?
  To ensure stability, make sure the output capacitor (CO) is within the recommended range (22uF to 47uF), and the ESR (Equivalent Series Resistance) is less than 1 ohm. Also, ensure the input capacitor (CI) is at least 10uF and has a low ESR. Finally, keep the feedback resistors (RFBT and RFB) within the recommended range (1k to 10k ohms).
• What is the maximum input voltage that can be applied to the VIN pin?
  The maximum input voltage that can be applied to the VIN pin is 24V. Exceeding this voltage may damage the IC.
• How do I calculate the output voltage (VOUT) for a specific application?
  The output voltage (VOUT) can be calculated using the following formula: VOUT = 0.8V x (1 + RFBT/RFB), where RFBT and RFB are the feedback resistors. For example, if RFBT = 10k ohms and RFB = 2k ohms, VOUT = 0.8V x (1 + 10k/2k) = 4V.
• What is the maximum output current that the MP24892DJ-LF-Z can deliver?
  The maximum output current that the MP24892DJ-LF-Z can deliver is 2A. Exceeding this current may cause the IC to overheat or shut down.