I have a project design that literally uses every single pin on the Teensy 4.1. Literally all of them: bottom side pads, ethernet, USB host and all the exposed pins. I've added external buffers powered by VUSB to drive PWM devices so the 3.3v reg on Teensy doesn't have to supply current beyond logic signalling. However, some devices still need 3.3V and the Teensy is heavily utilized so I'm still worried about running over on current consumption.
I'm looking for a good part\circuit that I can run off of VUSB to supply extra current capacity to the 3.3v supply. I'm having a PCB made, so I have flexibility on parts and wiring. I'm hoping someone can just tell me what to place. Any standard implementations out there?
I'm looking for a good part\circuit that I can run off of VUSB to supply extra current capacity to the 3.3v supply. I'm having a PCB made, so I have flexibility on parts and wiring. I'm hoping someone can just tell me what to place. Any standard implementations out there?