I'm courious how strong is magnetic field around step-down conveter? My plan is to use one LM2596 @ 12V(1A at maximum load) and one LM2596 @ 5V for STM32. I Know that coils generate MF around itself and in, lets say normal use I don't have any problem with magnetic field. But in this project I want to use MPU9250 for compass. I'm pretty sure magnetic field interferes with magnetometer, am I? Is magnetic field strong enough to disrupt MPU9250? Is there any way I can protect MPU9250 from magnetic field? Anti magnetic field shield? Enough space from step-downs and MPU9250? I hope that exists way to use step-downs and MPU9250 in same housing. I can separate them cca 15-20cm max. Will it be enough?
Simple: Is it possible to use magnetometer(MPU9250 module) near two step-down converters?