A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output traces short and away from each other to minimize noise and coupling.
Use a high-quality, low-ESR capacitor (e.g., 10uF ceramic) as close as possible to the VIN pin. Add additional decoupling capacitors (e.g., 100nF ceramic) near the VOUT pin to filter output noise.
The MAX5969BETB+T can handle input voltages up to 5.5V, but it's recommended to keep the input voltage below 5V to ensure reliable operation and minimize power dissipation.
The output voltage can be adjusted by connecting a resistor divider network between the VOUT pin and the ADJ pin. The output voltage is determined by the ratio of the resistors and the internal reference voltage (1.25V).
The MAX5969BETB+T has a thermal derating of 6.4mW/°C above 25°C. As the junction temperature increases, the output current capability decreases to prevent overheating. Ensure good airflow and heat sinking to maintain optimal performance.
