The Pololu S9V11F3S5CMA is a step-up/step-down voltage regulator. It produces a tightly regulated output voltage as small as 0.8 V or as high as 10.5 V and is suitable for powering microcontrollers, radios, sensors, and other low-voltage components from a single, 3.3V battery. It has a maximum output current of 3 A and features a wide range of protection features, including short-circuit, current-limit, and thermal protection, to ensure safe operation. The small size and low quiescent current make it an ideal choice for battery-operated applications such as robotics platforms.