A 2-layer or 4-layer PCB with a solid ground plane and thermal vias under the device is recommended for optimal thermal performance. The thermal pad should be connected to a large copper area to dissipate heat efficiently.
Ensure that the device is operated within the recommended temperature range (TJ = -40°C to 150°C). Use a heat sink or thermal interface material to improve heat dissipation. Also, consider derating the device's power dissipation at high temperatures.
A 10uF to 22uF X7R or X5R ceramic capacitor is recommended for the input capacitor. The capacitor should be placed as close to the device as possible to minimize parasitic inductance.
Use a shielded inductor, keep the layout compact, and minimize loop areas. Also, consider adding a common-mode choke and a filter capacitor to reduce EMI emissions.
A 10uF to 22uF X7R or X5R ceramic capacitor is recommended for the output capacitor. The capacitor should be placed as close to the device as possible to minimize parasitic inductance.