Pages: [1]   Go Down
Author Topic: Specification of Arduino's voltage regulators?  (Read 600 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Karma: 0
Posts: 3
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Specifically I would like to know if the voltage regulators that are on Arduinos are linear or step down.  I am currently powering my Arduino Leonardo with an 11.1volt LiPo, and I would be wasting over 50% of my energy if the Arduino uses a linear regulator.  If I need to I can add my own regulator before the Arduino.

Global Moderator
Boston area, metrowest
Offline Offline
Brattain Member
Karma: 548
Posts: 27372
Author of "Arduino for Teens". Available for Design & Build services. Now with Unlimited Eagle board sizes!
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Possible sub's:
Connect to 5V pin on the power header, not the barrel jack.

Maybe pull linear 3.3V regulator off the board if you don't want it running off the 5V. Add this external. If not using much 3.3V current, then live with it.


Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at
Arduino for Teens available at

Pages: [1]   Go Up
Jump to: