Step Down

Step Down Voltage Regulators - Buck Converters

Step down voltage regulators or buck converters take an unstable high DC voltage and convert it to a lower stable DC voltage.  Specifications list the regulated output voltage and current but check the input voltage maximum to ensure suitability. Some of the regulators allow for the output to be changed, although the adjusting potentiometer is designed for low frequency use and not for continual voltage adjustment.

The regulator will have a cut off voltage where the input voltage gets down near the output voltage and it can no longer regulate, instead turning off.

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Pololu 5V, 300mA Step-Down Voltage Regulator D24V3F5

Code: SKU-003045

The compact (0.4″ × 0.5″) D24V3F5 switching step-down (or buck) voltage regulator takes an input voltage between 7 V and 42 V and efficiently reduces it to 5 V while allowing for a maximum output current of 300 mA .

$ 12.95

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Pololu 7.5V, 2.5A Step-Down Voltage Regulator D24V25F7

Code: SKU-003456

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 7.5 V . The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A .

$ 27.95

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Pololu 9V, 15A Step-Down Voltage Regulator D24V150F9

Code: SKU-003812

This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 9 V with an available output current of around 15 A .

$ 112.95

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Pololu 9V, 300mA Step-Down Voltage Regulator D24V3F9

Code: SKU-003046

The compact (0.4″ × 0.5″) D24V3F9 switching step-down (or buck) voltage regulator takes an input voltage between 11 V and 42 V and efficiently reduces it to 9 V while allowing for a maximum output current of 300 mA .

$ 12.95

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SparkFun DC/DC Converter Breakout

Code: SKU-000398

This is a breakout board for our non-isolated, 6A DC-to-DC Converter Module . The module can convert any DC voltage between 4.5-14VDC to a selectable voltage between 0.59 and 5.5VDC. To set the output voltage to the desired level, a resistor must be added between the Trim and GND pins.

$ 54.95

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