MPM3620GQV-Z - Monolithic Power Systems (MPS)

MPM3620GQV-Z Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. Keep the switching node (SW pin) away from sensitive analog nodes and ensure good thermal conduction to the PCB ground plane.
• How do I optimize the output voltage accuracy?
  Use a high-precision voltage reference, such as a 0.5% or better resistor divider network, and ensure the output voltage is measured directly at the output capacitor. Minimize noise and ripple on the output voltage sense lines.
• What is the maximum input voltage that can be applied to the VIN pin?
  The maximum input voltage is 26V, but it's recommended to keep it below 24V for optimal reliability and performance. Exceeding 26V may cause damage to the device.
• How do I ensure the device is stable and doesn't oscillate?
  Ensure the output capacitor has a low ESR (< 10mΩ) and a high-quality dielectric (e.g., X5R or X7R). Avoid using ceramic capacitors with high ESR or high inductance. Keep the feedback loop compensation network simple and avoid adding unnecessary poles or zeros.
• What is the recommended input capacitor type and value?
  A low-ESR ceramic capacitor (e.g., X5R or X7R) with a value between 4.7μF and 10μF is recommended. The capacitor should be placed close to the VIN pin and have a low inductance path to the PCB ground plane.