I am using a 36 V battey pack (10s 2.5 A each cell 3.6V.) Its maximum voltage is 42 V. I am using a STM32 microcontroller whose input is 3.3 V.
I am designing a PCB in which the power supply is drawn from the battery pack (42 V.) I would like to power the STM32 microcontroller from the battery pack power supply.
I would like to regulate 42 to 3.3 V so that I can power my STM32 microcontroller.
Which method is best to convert it either using regulator or buck converter based on the pcb designing?
Battery Specification: 10s1p
- Battery pack nominal voltage: 36 V
- Battery pack maximum voltage: 42 V
- Battery pack current: 2500 mAh
Microcontroller specfication: STM32F401RCT6
- Supply voltage: 3.3 to 3.6 V
- Supply current: 100 to 160 mA
Which method or component is best to regulate 42 V so that I can power my microcontroller with 3.3 V?