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.
Ensure that the output capacitor has a low ESR, and the input capacitor has a high capacitance. Also, add a small ceramic capacitor (e.g., 10nF) between the VOUT and GND pins to improve stability.
The maximum input voltage is 18V, but it's recommended to keep it below 15V to ensure reliable operation and prevent overheating.
The TPS65720YFFT is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to prevent overheating and ensure reliability.
Use the equations provided in the datasheet to calculate the output voltage and current capabilities based on the input voltage, output voltage, and desired output current.