brucethehoon
Member
Hello again! My project is coming along delightfully, and it's time for me to order some testbed pcbs to get some real performance tests done. I'm using a LM1117MPX-3.3 to get a 3v3 source off of my +12 rail. This is the primary source I've been using for things like my DAC, but in testing, I've been powering the Teensy from the USB connection.
Now that I'm looking to move things off a bit, I'd like to know if it's possible to drive the Teensy with a 3v3 line, or if I'll need to put in a LM1117MPX-5.0 in there. Not the end of the world if I need to, but added part count is just something I'd like to consider. I'm aware that there would be issues driving it from external USB while it's powered by the test board, but I've dealt with those in the past ala x-acto knives and diodes and such.
Thanks!
Now that I'm looking to move things off a bit, I'd like to know if it's possible to drive the Teensy with a 3v3 line, or if I'll need to put in a LM1117MPX-5.0 in there. Not the end of the world if I need to, but added part count is just something I'd like to consider. I'm aware that there would be issues driving it from external USB while it's powered by the test board, but I've dealt with those in the past ala x-acto knives and diodes and such.
Thanks!