Regulators and Power Supplies

Step-Up/Step-Down Voltage Regulators

Buck-boost and SEPIC converters work with input voltages that are higher than, equal to, or lower than the regulated output voltage, making them especially well-suited for battery-powered applications in which the battery voltage begins above the desired output voltage and drops below the target as the battery discharges.

Step-Up Voltage Regulators

Boost converters generate a regulated output voltage that is higher than the input voltage.

Step-Down Voltage Regulators

Switching buck converters reduce an input voltage to a lower, regulated voltage much more efficiently than linear regulators.

Products in category “Regulators and Power Supplies”

Pololu item #: 2177
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Hydra Smart Triple-Output DC Power Supply

The Hydra is a triple-output power converter from CH Robotics designed to make it easier to get the power you need for your next project. With its palm-sized aluminum case, the Hydra provides all the flexibility of a bench-top supply and only uses a fraction of the desk space. Each of the three outputs can supply about 12 W maximum at voltages ranging from 2.5 V to 14 V, and they can be controlled from a computer via USB or a microcontroller via serial.

Pololu item #: 1459
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Wall Power Adapter: 5VDC, 3A, 5.5×2.1mm Barrel Jack, Center-Positive

This UL-listed 15 W, “wall wart”-style switching power adapter supplies up to 3 A at a regulated 5 VDC. The AC adapter works with input voltages of 100 – 240 VAC and has a 1.5 m (5 ft) DC power cord that is terminated by a center-positive, 5.5 × 2.1 mm barrel connector.

Pololu item #: 1462
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Wall Power Adapter: 12VDC, 3A, 5.5×2.1mm Barrel Jack, Center-Positive

This UL-listed 36 W, “wall wart”-style switching power adapter supplies up to 3 A at a regulated 12 VDC. The AC adapter works with input voltages of 100 – 240 VAC and has a 1.5 m (5 ft) DC power cord that is terminated by a center-positive, 5.5 × 2.1 mm barrel connector.

Pololu item #: 1468
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Solar Cell: 4.5 V, 100 mA, 0.45 W

This packaged 0.45 W solar cell has a 5.5 mm × 2.1 mm barrel plug termination. It is a custom solar cell produced for SparkFun – not a small toy or surplus cell. This solar cell is rated for 4.5 V open voltage and 100 mA short circuit.

Pololu item #: 1692
Price: \$34.95
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Solar Cell: 8 V, 310 mA, 2.5 W

This packaged 2.5 W solar cell has a 5.5 mm × 2.1 mm barrel plug termination. It is a custom solar cell produced for SparkFun – not a small toy or surplus cell. This solar cell is rated for 8 V open voltage and 310 mA short circuit.