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Pololu 12V Step-Up Voltage Regulator U3V50F12

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This powerful boost regulator efficiently generates an output voltage of 12 V from an input voltage as low as 2.9 V while allowing an input current as high as 5 A.

These boost (step-up) voltage regulators generate higher output voltages from input voltages as low as 2.9 V. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) and have a typical efficiency between 80% to 95%. The available output current is a function of the input voltage, output voltage, and efficiency (see the Typical Efficiency and Output Current section below), but the input current can typically be as high as 5 A. This regulator is available with a fixed 5 V, 6 V, 9 V, 12 V, or 24 V output: