What is the symptom of 'keeps dying' ? Regulator getting hot, magic smoke, or only the MCU stops working and continues to work after a reset.
Could be the regulator is producing voltage spikes.
Raspberry pico, pico2 has a max supply voltage "VSYS Max 5.5V"; the on board regulator is absolute max voltage 6V. You could add a TVS diode close to the pico inputs. See https://www.ti.com/lit/an/slvae37/slvae37.pdf .
Or use a separate battery to pico regulator with a higher input voltage range, e.g. https://www.pololu.com/product/5433 with up to 65V input. What is the max battery voltage?
There are RP2040 boards with higher supply voltage than 5.5V, e.g. Arduino® Nano RP2040 Connect with up to 20V. Perhaps you find a board with RP2350 and a higher supply voltage.
Could be the regulator is producing voltage spikes.
Raspberry pico, pico2 has a max supply voltage "VSYS Max 5.5V"; the on board regulator is absolute max voltage 6V. You could add a TVS diode close to the pico inputs. See https://www.ti.com/lit/an/slvae37/slvae37.pdf .
Or use a separate battery to pico regulator with a higher input voltage range, e.g. https://www.pololu.com/product/5433 with up to 65V input. What is the max battery voltage?
There are RP2040 boards with higher supply voltage than 5.5V, e.g. Arduino® Nano RP2040 Connect with up to 20V. Perhaps you find a board with RP2350 and a higher supply voltage.
Statistics: Posted by ghp — Thu Oct 16, 2025 8:24 pm