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TPS5402: Inductor's value calculation problem on the datasheet

Part Number: TPS5402

Monolithic Non-Synchronous Step-Down Regulator With Integrated MOSFET . datasheet (ti.com)

On the TPS5402 spec above, with the equation (3) to calculate the inductor's value on page #11, I can only calculate the inductor's value to be 32.40741 uH; while the spec stated that the proper value is 5.4uH....not sure if there is an error on the spec or during my calculation process. When I made the calculation I use the below number:

Vout  5V     Vin 12V      IL  0.3    Iout  1A     Fsw   0.3MHz

Can you help to explain on this? I had thought that I can take use of our existing 4.7uH inductor for the product...if the 5.4uH value is NOT correct, then I had to try other options.