Do you have a project that runs on 3.3V, but you only have a 5V power supply or a 1.8V battery? Then you need the MOD-1028 3.3V Buck/Boost Supply! This little guy will provide you with up to 700mA at a steady 3.3V. It can take an input of 1.8V up to 5.5V. No need to find more batteries or another power supply; the MOD-1028 will do the job. 

This module is pre-built and requires no construction, except for adding breakaway headers or soldering wiring directly to the board.