The Pololu adjustable boost regulator is a very flexible switching regulator (also called a switched-mode power supply, SMPS, or DC-DC converter) that can generate voltages higher than the input voltage. We offer two adjustable ranges: approximately 2.5 V to 9.5 V and 4 V to 25 V. The output voltage can be adjusted using the trimmer potentiometer in the upper right corner of the board. The input voltage range is between 1.5 V and 16 V (the input voltage should be kept below the output voltage). The integrated 2 A switch allows output currents high enough to run small motors, like our 3pi robot, and allows for large voltage gains such as getting 24 V from two NiMH or NiCd cells. Some example applications include: Powering 5 V or 3.3 V systems from low voltage batteries ; Powering 5 V subsystems (eg sensors) in low voltage (eg 3.3 V) systems ; Achieving consistent actuator operation when powered by variable batteries; Powering high brightness LEDs or multiple LEDs in series; Features input voltage: 1.5 V - 16 V ; Adjustable output from 2.5 V to 9.5 V or 4 V to 25 V; 750 kHz switching frequency ; 2 A switch (and input) limit ; integrated overtemperature and overcurrent shutdown; Typical efficiency of 80-90% when doubling the voltage and 100-500 mA output; small size: 10.7 x 22.4 x 5.8 mm (0.42" x 0.88" x 0.23") ; weight without header pins: 1.6 g (0.06 oz) ;