LDO for STM32H573AII3Q

[madhu1]

STM32H573AII3Q is a 169 pin UFBGA SMPS package. Along with SMPS option, does it also have internal LDO for core supply? Can we use internal LDO to supply core voltage for this package?

[mƎALLEm]

Hello @madhu1 ,

Only SMPS is supported by this package. And according to the reference manual:

So the package has only one PWR config: SMPS or LDO.

[madhu1]

Hello,

I think it has both option. Even for SMPS power scheme, there is a LDO shown internal to uC. Refer below image: Please let me know if my understanding is correct.

 

 

 

[mƎALLEm]

Indeed the LDO is there on the die but it is disabled by HW as already said in RM section 10.5.1.