Small DC-DC converters for fischertechnik

fischertechnik compatible cases for 3V, 5V, and 9V output DC-DC buck-boost converters


Creative Commons Attribution Share Alike

Commercial use is allowed, you must attribute the creator, you may remix this work and the remixed work should be made available under this license.

Learn more or download attribution tags


These small no name DC-DC step-up/down converter PCBs are ideal for small projects of up to (nominally) 600mA. Mine are called "DC-DC Automatic Buck-boost Modul 2.5V-15V to 3.3V 4.2V 5V 9V 12V Output" on ebay. Watch out, there is a newer, very similar looking version of this board with five instead of four connectors pins, they won't fit this case.

With the help of four 3-pin male headers and a bit of soldering, the case can be used with the fischertechnik 2,6mm plugs or female dupont connectors.

Materials and methods

PETG/PLA, 4 x 3 pin male headers, wire, soldering iron



Issues are used to track todos, bugs or requests. To get started, you could create an issue.


9b7697526b994066c2f6287fe715aaa9?default=blank&size=40Kritec added this to the stuff collection ago
Mini thingiverse avatarjuh3D published this design ago