Power Dissipation MPQ24833-B

Hi MPS team,

In my application used the MPQ24833-B, input voltage is 24V-30V, Output load is 3 LED connected in series Each 9v Forward voltage drop, Forward current is .9A, how to calculate the power dissipation, you have any calculation sheets or toll available, please let me know , For PD if IC we need consider the Inductor, Schottky Diode PD also need to consider ?