Step-Down Voltage Regulators

Switching buck converters reduce an input voltage to a lower, regulated voltage much more efficiently than linear regulators. For quick comparison, the following table shows some of the key stats for the regulators in this category:

Compare all products in this category

	Pololu item #: 2111 Price: $24.95 Quantity:
Pololu Step-Down Voltage Regulator D15V70F5S3 The compact (1.9"×0.6") D15V70F5S3 switching step-down (or buck) voltage regulator takes an input voltage between 4.5 V and 24 V and efficiently reduces it to a lower, user-selectable voltage. The selectable output voltages are 5 V and 3.3 V, and it can deliver 7 A continuous in typical applications.

	Pololu item #: 2110 Price: $14.95 Quantity:
Pololu Step-Down Voltage Regulator D15V35F5S3 The compact (1.68"×0.46") D15V35F5S3 switching step-down (or buck) voltage regulator takes an input voltage between 4.5 V and 24 V and efficiently reduces it to a lower, user-selectable voltage. The selectable output voltages are 5 V and 3.3 V, and it can deliver up to 3.5 A continuous in typical applications.

	Pololu item #: 2106 Price: $5.95 Quantity:
Pololu 3.3V, 600mA Step-Down Voltage Regulator D24V6F3 The compact (0.4″ × 0.5″) D24V6F3 switching step-down (or buck) voltage regulator takes an input voltage between 4.8 V and 42 V and efficiently reduces it to 3.3 V while allowing for a maximum output current of 600 mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2097 Price: $3.95 Quantity:
Pololu 3.3V, 300mA Step-Down Voltage Regulator D24V3F3 The compact (0.4″ × 0.5″) D24V3F3 switching step-down (or buck) voltage regulator takes an input voltage between 4.3 V and 42 V and efficiently reduces it to 3.3 V while allowing for a maximum output current of 300 mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2107 Price: $5.95 Quantity:
Pololu 5V, 600mA Step-Down Voltage Regulator D24V6F5 The compact (0.4″ × 0.5″) D24V6F5 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 600 mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2098 Price: $3.95 Quantity:
Pololu 5V, 300mA Step-Down Voltage Regulator D24V3F5 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. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2108 Price: $5.95 Quantity:
Pololu 9V, 600mA Step-Down Voltage Regulator D24V6F9 The compact (0.4″ × 0.5″) D24V6F9 switching step-down (or buck) voltage regulator takes an input voltage between 11.5 V and 42 V and efficiently reduces it to 9 V while allowing for a maximum output current of 600 mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2099 Price: $3.95 Quantity:
Pololu 9V, 300mA Step-Down Voltage Regulator D24V3F9 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. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2109 Price: $5.95 Quantity:
Pololu 12V, 600mA Step-Down Voltage Regulator D24V6F12 The compact (0.4″ × 0.5″) D24V6F12 switching step-down (or buck) voltage regulator takes an input voltage between 15 V and 42 V and efficiently reduces it to 12 V while allowing for a maximum output current of 600 mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2100 Price: $3.95 Quantity:
Pololu 12V, 300mA Step-Down Voltage Regulator D24V3F12 The compact (0.4″ × 0.5″) D24V3F12 switching step-down (or buck) voltage regulator takes an input voltage between 14.5 V and 42 V and efficiently reduces it to 12 V while allowing for a maximum output current of 300 mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2103 Price: $9.95 Quantity:
Pololu Step-Down Voltage Regulator D24V6ALV The compact (0.4″ × 0.6″) D24V6ALV switching step-down (or buck) voltage regulator takes an input voltage between 4.5 V and 42 V and efficiently reduces it to a lower, user-adjustable voltage. It has a output voltage range of 2.5 V to 7.5 V and a maximum output current of 600mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2101 Price: $7.95 Quantity:
Pololu Step-Down Voltage Regulator D24V3ALV The compact (0.4″ × 0.6″) D24V3ALV switching step-down (or buck) voltage regulator takes an input voltage between 4.5 V and 42 V and efficiently reduces it to a lower, user-adjustable voltage. It has a output voltage range of 2.5 V to 7.5 V and a maximum output current of 300mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2104 Price: $9.95 Quantity:
Pololu Step-Down Voltage Regulator D24V6AHV The compact (0.4″ × 0.6″) D24V6AHV switching step-down (or buck) voltage regulator takes an input voltage between 4.5 V and 42 V and efficiently reduces it to a lower, user-adjustable voltage. It has a output voltage range of 4 V to 25 V and a maximum output current of 600mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2102 Price: $7.95 Quantity:
Pololu Step-Down Voltage Regulator D24V3AHV The compact (0.4″ × 0.6″) D24V3AHV switching step-down (or buck) voltage regulator takes an input voltage between 4.5 V and 42 V and efficiently reduces it to a lower, user-adjustable voltage. It has a output voltage range of 4 V to 25 V and a maximum output current of 300mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

	Pololu item #: 2177 Price: $11.95 Quantity:
5V 3A BEC Step-Down Voltage Regulator This switching step-down (or buck) voltage regulator takes an input voltage of up to 23 V and reduces it to 5 V with a maximum output current of 3 A. It has 22-AWG input leads with stripped and tinned terminations and a 3-pin “JR”-style servo connector on the output lead.