Hi Mario, Let me tell why no one answered you. 1. Most of the people from the list are considering this subject too easy. 2. The question was incomplete, you must tell the power or the current you need from both supplies However, I bet there are no more than 30 people from this 1500 people list which knows how to dimension corect and complete a linear 5V and 3.3V power supply starting from input/output requirements. ( dimensioning and computing the transformer, rectifying bridge, filtering capacitor, heatsinks etc.) For your project I suggest a LM7805 and a BA033T. Both have more than 5 producer clones and various packages for 100mA, 500mA 1A and 3A. They could be chained or not (powering the 3.3V regulator from the 5V). cheers, Vasile On 8/26/05, Mario Mendes Jr. wrote: > Hi guys, > > I'm working on a project that requires both 5v and 3.3v. Anyone has a > simple power supply schematic that has both outputs in it? > > This is being put together in a breadboard, so a 5v input and 3.3v output > would work for now. > > Thanks. > > > -Mario > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist