The maximum output power of LNK363DN is 3.5W, but it can be increased to 5W with proper thermal design and heat sinking.
To ensure stability, make sure to use a minimum output capacitance of 2.2uF, and consider adding a 10nF ceramic capacitor in parallel to reduce output voltage ripple.
A 10uF to 22uF X7R or X5R ceramic capacitor is recommended for the input, placed as close to the IC as possible to minimize noise and ensure stable operation.
To optimize thermal performance, ensure a solid ground plane, use a thermal pad under the IC, and keep the thermal path clear of other components and traces.
The maximum ambient temperature for reliable operation is 85°C, but it can be derated to 70°C for high-reliability applications.