A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the power lines. Avoid routing signals under the IC.
Use a power-on reset (POR) circuit to ensure the IC is properly powered up. Configure the EN pin to enable the device, and use the SYNC pin to synchronize the output voltage with the input voltage.
The maximum input voltage is 5.5V, but it's recommended to keep the input voltage below 5V to ensure reliable operation and to prevent damage to the IC.
The output voltage can be adjusted by connecting a resistor divider network between the FB pin and the output voltage. The resistor values can be calculated using the formula provided in the datasheet.
The thermal derating of the MAX77751CEFG+ is 1.5°C/W. This means that for every 1°C increase in ambient temperature, the maximum power dissipation of the IC decreases by 1.5W.
