Hi all,I am using a 4-wire fan supplied by 24V. I was wondering if the tacho output from the fan needs an external timer or a Freq to voltage converter; or can I just use a pull up resistor and connect the tacho signal straight to the input of STM32 ...

I am looking for programmable buck converter to provide up to 12V/2A output with 24VDC input to use it in my design when I ran into STPD01. Could it be possible to use this buck to power up my circuit (not for USB purpose) ?Thanks!Sabrine