The recommended PCB layout for optimal thermal performance involves placing the device on a 2-layer or 4-layer board with a solid ground plane, using thermal vias to connect the exposed pad to the ground plane, and keeping the surrounding area clear of components to allow for airflow.
To optimize the output filter design, use a combination of capacitors with low ESR and high frequency ceramic capacitors in parallel, and consider adding a small inductor in series with the output capacitor to reduce ripple and noise.
The maximum allowed input voltage transient for the MP86884DQKT-LF-Z is 22V for a duration of less than 100ms, according to the datasheet. However, it's recommended to consult with Monolithic Power Systems for specific guidance on input voltage transients.
To ensure reliable startup and shutdown, use a soft-start circuit to limit the inrush current, and add a capacitor to the EN pin to filter out noise and ensure a clean enable signal.
The recommended input capacitor type is a low-ESR ceramic capacitor with a value of 10uF to 22uF, depending on the input voltage and output current requirements.
Findchips
Findchips