A good PCB layout for the MP24833-AGN-Z should include a solid ground plane, separate analog and digital grounds, and a decoupling capacitor (e.g., 10uF) between VIN and GND. Keep the input and output capacitors close to the IC, and use short, wide traces for the power paths.
Choose input capacitors with low ESR (Equivalent Series Resistance) and high ripple current rating. For output capacitors, select ones with low ESR, high capacitance, and a voltage rating above the output voltage. A good starting point is a 10uF input capacitor and a 22uF output capacitor.
The MP24833-AGN-Z can operate reliably up to 85°C ambient temperature, but derating is required above 70°C. Ensure good airflow and heat dissipation to prevent overheating.
The output voltage can be adjusted by changing the resistor divider ratio between the FB pin and GND. Use the formula: VOUT = 0.8V x (R1 + R2) / R2, where R1 and R2 are the resistors in the divider.
The MP24833-AGN-Z requires a minimum input voltage of 2.5V to start up. Ensure the input voltage is above this threshold for reliable operation.
MP24833-AGN-Z datasheet
by Monolithic Power Systems
