TPS54561: Calculation of internal high-side mosfet switching-loss

Hi TI

From 8.2.1.2.12 Power Dissipation Estimate of the TPS54561 Rev.G datasheet, the calculation of internal high-side mosfet switching-loss is 

P = Vin * fsw * Iout * trise = 12 V * 400 kHz * 5 A * 4.9 ns = 0.118 W

But from this ROHM app note 

https://fscdn.rohm.com/en/products/databook/applinote/ic/power/switching_regulator/buck_converter_efficiency_app-e.pdf

the calculation of internal high-side mosfet switching-loss of synchronous rectification buck and non-synchronous rectification buck should be same as the eq5 (including the trise and tfall).

What do you think of the difference? Thanks.