MP4560DN-LF datasheet by Monolithic Power Systems

MP4560DN-LF Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  A 4-layer PCB with a solid ground plane and a separate power plane is recommended. 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?
  Ensure that the output capacitor has a low ESR, and the feedback network is properly compensated. Also, avoid using long, thin traces for the feedback path, and keep the feedback components close to the IC.
• What is the maximum input voltage that can be applied to the IC?
  The maximum input voltage is 26V, but it's recommended to keep it below 24V for optimal performance and reliability.
• Can I use a ceramic capacitor for the output filter?
  Yes, but ensure that the ceramic capacitor has a low ESR and is rated for the output voltage. Also, consider using an X5R or X7R dielectric for better performance.
• How do I calculate the output voltage ripple?
  The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESR) / (f * Cout), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, f is the switching frequency, and Cout is the output capacitance.