2 ms·
Just put a huge low-ESR cap on the 3V3 rail. Newer WiSoCs like ESP32 draws too much for too short that regulators can't catch up. I've once had brownouts with a
by numpad0 3y ago
Just put a huge low-ESR cap on the 3V3 rail. Newer WiSoCs like ESP32 draws too much for too short that regulators can't catch up. I've once had brownouts with an Uno R3 style ESP32 board, and it didn't stop until I added a 0.22F EDLC from my junk bin, which is absurd and not a recommended usage of EDLC, but I think even 330uF electrolytic from same bin didn't cut it.