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TPS61378-Q1: Inductor ripple current percentage

Rehana jose
Prodigy 40 points
Part Number: TPS61378-Q1

Tool/software:

Hi ,

When TPS61378 was simulated in the Web bench tool for the input requirements: Vin =5V, Vout=9V, Iout=1A, the results of the design were obtained as attached. The ripple current percentage mentioned is 43.664% for ripple 968.16mA and output load current 1A.  Please share the equation or calculation to match the ripple percentage in the results?