A good PCB layout for the MP2359DT-LF-Z should minimize the area of the power loops, keep the input and output capacitors close to the IC, and use a solid ground plane to reduce noise and EMI.
To ensure stability, make sure to follow the recommended component values and PCB layout, and add a small capacitor (e.g., 10nF) between the VIN and EN pins to filter out noise. Also, ensure that the output capacitor has a low ESR and is placed close to the IC.
Although the datasheet specifies a maximum input voltage of 15V, it's recommended to limit the input voltage to 12V to ensure reliable operation and prevent damage to the IC.
While it's possible to use a different inductor value or type, it's not recommended as it may affect the converter's performance, efficiency, and stability. The recommended inductor value and type are carefully selected to ensure optimal performance.
To troubleshoot issues, first check the input voltage, output voltage, and current. Verify that the input and output capacitors are properly connected and meet the recommended specifications. Check for short circuits, overheating, or damage to the IC or surrounding components. Consult the datasheet and application notes for more guidance.
MP2359DT-LF-Z datasheet
by Monolithic Power Systems
