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• V_{in_max} = 55V, V_out = 5V, I_out= 5A, K_ind = ΔI_L/I_out = 0.3 (recommended by datasheet), and f_sw= 400kHz

• Using the equation above, L_min = 7.6uH. Choose the next standard value of 8.2uH. The saturation current of the inductor should be greater than the switch current limit of 7.5A

OLD PART: https://www.digikey.ca/en/products/detail/würth-elektronik/7443330820/2175573

NEW PART: https://www.digikey.ca/en/products/detail/codaca/CSEB0770H-8R2M/16566340

Justification for new part: smaller size. (10.90mm x 10.00mm) vs (7.90mm x 7.60mm). New part has higher DCR and lower current rating.

Output Capacitor

• Datasheet recommends C_out > 62.5uF to account for transient load response

• Use 3x 47uF 10V caps to get C_out = 90uF at 5V DC bias, which is safely above the minimum 62.5uF

• https://www.digikey.ca/en/products/detail/murata-electronics/GRM32EC81A476KE19L/2548451

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