Skip to main content
Associate III
Nov 5, 2026 1:21 PM UTC
Question

STM32L496 Low Power Run Mode

Hi,

We are using STM32L496. We are trying with Dynamic voltage scaling is being used and set to Range 2 and Low-power run mode. 

MCU is connected with 1.2V at VDD12 with external SMPS. 

How do we know, MCU is taking power from VDD12 SMPS or main VDD rail?

VDD = 2.5V

/Anurag