LMR33630-Q1: the different of the calculation of Cout value.

Hello

The equations from either data sheet are only very rough approximations to the required output capacitance.

Neither equation can be valid for all operating conditions. They are included in the data sheet to give a starting

point to provide a stable regulator.

Regarding the equation in the LMR33630 data sheet, it is based on an inductance limited response.

For the LMR33630 we have a calculator tool on the product page that should be used to determine the

minimum output capacitance.  The tool can also be used to determine the loop phase and gain margin

based on a desired output capacitance.  The tool is much more accurate and flexible than the equation(s) in the

data sheet.

Alternatively, the output capacitance in the data sheet table can be used as a starting point.

We are happy to review your design when it is ready.

Thanks