Capacitance required for switching regulator in controller STM32U585QII6QTR

[vineeth_K]

This is a switching regulator and they require the specified output capacitance which is 4.4uF given in the datasheet

we have given two 2.2uF capacitance at the regulator but one capacitance has 2 ohms resistor to it for intrinsic safety

will this still be considered as 4.4uF on total or will this cause any issues

[STOne-32]

Dear @vineeth_K ,

 

You can refer to our Application Note for SMPS Power supply requirements 

Getting started with STM32U5 MCU hardware development - Application note - Figure 18.

Hope it helps you.

Ciao

 

STOne-32.