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. Newer products are at the top of the table and are generally preferred:

Regulator Output voltage Max output current Max input voltage Typical efficiency Size Price
#2880: D24V150F3 3.3 V 15 A 40 V 80% – 95% 1.25″ × 1.7″ $39.95
#2881: D24V150F5 5 V 15 A 40 V 80% – 95% 1.25″ × 1.7″ $39.95
#2882: D24V150F6 6 V 15 A 40 V 80% – 95% 1.25″ × 1.7″ $39.95
#2883: D24V150F7 7.5 V 15 A 40 V 80% – 95% 1.25″ × 1.7″ $39.95
#2884: D24V150F9 9 V 15 A 40 V 80% – 95% 1.25″ × 1.7″ $39.95
#2885: D24V150F12 12 V 15 A 40 V 80% – 95% 1.25″ × 1.7″ $39.95
#2851: D24V50F5 5 V 5 A 38 V 85% – 95% 0.7″ × 0.8″ $14.95
#2857: D24V22F3 3.3 V 2.6 A 36 V 85% – 95% 0.7″ × 0.7″ $8.95
#2858: D24V22F5 5 V 2.5 A 36 V 85% – 95% 0.7″ × 0.7″ $8.95
#2859: D24V22F6 6 V 2.5 A 36 V 85% – 95% 0.7″ × 0.7″ $9.95
#2860: D24V22F7 7.5 V 2.4 A 36 V 85% – 95% 0.7″ × 0.7″ $9.95
#2861: D24V22F9 9 V 2.3 A 36 V 90% – 95% 0.7″ × 0.7″ $9.95
#2855: D24V22F12 12 V 2.2 A 36 V 90% – 95% 0.7″ × 0.7″ $9.95
#2866: D24V90F5 5 V 9 A 38 V 80% – 95% 0.8″ × 1.6″ $27.95
#2865: D24V60F5 5 V 6 A 38 V 80% – 95% 0.8″ × 1.6″ $19.95
#2830: D24V10F3 3.3 V 1 A 36 V 80% – 90% 0.5″ × 0.7″ $7.49
#2831: D24V10F5 5 V 1 A 36 V 85% – 90% 0.5″ × 0.7″ $7.49
#2832: D24V10F6 6 V 1 A 36 V 85% – 93% 0.5″ × 0.7″ $7.49
#2833: D24V10F9 9 V 1 A 36 V 85% – 93% 0.5″ × 0.7″ $7.49
#2834: D24V10F12 12 V 1 A 36 V 85% – 93% 0.5″ × 0.7″ $7.49
#2840: D24V5F1 1.8 V 0.5 A 36 V 75% – 90% 0.4″ × 0.5″ $4.95
#2841: D24V5F2 2.5 V 0.5 A 36 V 80% – 90% 0.4″ × 0.5″ $4.95
#2842: D24V5F3 3.3 V 0.5 A 36 V 80% – 90% 0.4″ × 0.5″ $4.95
#2843: D24V5F5 5 V 0.5 A 36 V 85% – 90% 0.4″ × 0.5″ $4.95
#2844: D24V5F6 6 V 0.5 A 36 V 85% – 93% 0.4″ × 0.5″ $4.95
#2845: D24V5F9 9 V 0.5 A 36 V 85% – 93% 0.4″ × 0.5″ $4.95
#2846: D24V5F12 12 V 0.5 A 36 V 85% – 93% 0.4″ × 0.5″ $4.95
#2847: D24V5F15 15 V 0.5 A 36 V 90% – 95% 0.4″ × 0.5″ $4.95
#2849: D24V25F3 3.3 V 2.5 A 38 V 80% – 95% 0.7″ × 0.7″ $10.95
#2850: D24V25F5 5 V 2.5 A 38 V 85% – 95% 0.7″ × 0.7″ $10.95
#2852: D24V25F6 6 V 2.5 A 38 V 85% – 95% 0.7″ × 0.7″ $11.95
#2853: D24V25F7 7.5 V 2.5 A 38 V 85% – 95% 0.7″ × 0.7″ $11.95
#2854: D24V25F9 9 V 2.5 A 38 V 85% – 95% 0.7″ × 0.7″ $11.95
#2111: D15V70F5S3 3.3 V or 5 V 7 A 24 V 85% – 95% 0.6″ × 1.9″ $24.95
#2097: D24V3F3 3.3 V 0.3 A 42 V 80% – 90% 0.4″ × 0.5″ $3.95
#2098: D24V3F5 5 V 0.3 A 42 V 80% – 90% 0.4″ × 0.5″ $3.95
#2099: D24V3F9 9 V 0.3 A 42 V 85% – 95% 0.4″ × 0.5″ $3.95
#2100: D24V3F12 12 V 0.3 A 42 V 85% – 95% 0.4″ × 0.5″ $3.95
#2106: D24V6F3 3.3 V 0.6 A 42 V 80% – 90% 0.4″ × 0.5″ $5.95
#2107: D24V6F5 5 V 0.6 A 42 V 80% – 90% 0.4″ × 0.5″ $5.95
#2108: D24V6F9 9 V 0.6 A 42 V 85% – 95% 0.4″ × 0.5″ $5.95
#2109: D24V6F12 12 V 0.6 A 42 V 90% – 95% 0.4″ × 0.5″ $5.95
#2103: D24V6ALV 2.5 V – 7.5 V 0.6 A 42 V 70% – 85% 0.4″ × 0.6″ $9.95
#2101: D24V3ALV 2.5 V – 7.5 V 0.3 A 42 V 70% – 85% 0.4″ × 0.6″ $7.95
#2104: D24V6AHV 4 V – 25 V 0.6 A 42 V 75% – 90% 0.4″ × 0.6″ $9.95
#2102: D24V3AHV 4 V – 25 V 0.3 A 42 V 75% – 90% 0.4″ × 0.6″ $7.95


Products in category “Step-Down Voltage Regulators”

Pololu item #: 2880
Brand: Pololu
Status: Active and Preferred 
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This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 3.3 V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. The regulator features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2881
Brand: Pololu
Status: Active and Preferred 
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This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 5 V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. The regulator features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2882
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
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This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 6 V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. The regulator features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2883
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
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This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 7.5 V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. The regulator features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2884
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
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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. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. The regulator features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2885
Brand: Pololu
Status: Active and Preferred 
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This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 12 V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. The regulator features reverse voltage protection and a power-good output that indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2851
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.8″, but it allows a typical continuous output current of up to 5 A. Typical efficiencies of 85% to 95% make this regulator well suited for high-power applications like powering motors or servos. High efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps.

Pololu item #: 2857
Brand: Pololu
Status: Active and Preferred 
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This small synchronous switching step-down (or buck) regulator takes an input voltage from 4 V to 36 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.6 A and features reverse voltage protection. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. An optional shutdown pin enables a low-power state with a current draw of around 20 μA to 350 μA, depending on the input voltage, and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2858
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.5 A and features reverse voltage protection. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. An optional shutdown pin enables a low-power state with a current draw of around 20 μA to 350 μA, depending on the input voltage, and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2859
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 6 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.5 A and features reverse voltage protection. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. An optional shutdown pin enables a low-power state with a current draw of around 30 μA to 350 μA, depending on the input voltage, and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2860
Brand: Pololu
Status: Active and Preferred 
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Temporarily out of stock. See product page to backorder.
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This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 7.5 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.4 A and features reverse voltage protection. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. An optional shutdown pin enables a low-power state with a current draw of around 30 μA to 350 μA, depending on the input voltage, and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2861
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.3 A and features reverse voltage protection. Typical efficiencies of 90% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. An optional shutdown pin enables a low-power state with a current draw of around 40 μA to 350 μA, depending on the input voltage, and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2855
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 12 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.2 A and features reverse voltage protection. Typical efficiencies of 90% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. An optional shutdown pin enables a low-power state with a current draw of around 50 μA to 350 μA, depending on the input voltage, and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Pololu item #: 2866
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V with an available output current of around 9 A. Typical efficiencies of 80% to 95% make this regulator well suited for higher-power applications like powering motors or servos, while high efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps. The regulator’s output voltage setting can also be lowered by adding an external resistor.

Pololu item #: 2865
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V with an available output current of around 6 A. Typical efficiencies of 80% to 95% make this regulator well suited for higher-power applications like powering motors or servos, while high efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps. The regulator’s output voltage setting can also be lowered by adding an external resistor.

Pololu item #: 2830
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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The compact (0.5″ × 0.7″) D24V10F3 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 3.3 V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 80% and 90% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 3.3 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2831
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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The compact (0.5″ × 0.7″) D24V10F5 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 5 V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 85% and 90% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 5 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2832
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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The compact (0.5″ × 0.7″) D24V10F6 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 6 V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 85% and 93% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 6 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2833
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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The compact (0.5″ × 0.7″) D24V10F9 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 85% and 93% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 9 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2834
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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The compact (0.5″ × 0.7″) D24V10F12 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 12 V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 85% and 93% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 12 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2840
Brand: Pololu
Status: Active and Preferred 
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The compact (0.4″ × 0.5″) D24V5F1 synchronous buck voltage regulator takes input voltages between 3 V and 36 V and efficiently reduces them to 1.8 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 75% and 90%. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2841
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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The compact (0.4″ × 0.5″) D24V5F2 synchronous buck voltage regulator takes input voltages between 3 V and 36 V and efficiently reduces them to 2.5 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 80% and 90%. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2842
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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The compact (0.4″ × 0.5″) D24V5F3 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 3.3 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 80% and 90% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 3.3 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2843
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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The compact (0.4″ × 0.5″) D24V5F5 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 5 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 85% and 90% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 5 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2844
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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The compact (0.4″ × 0.5″) D24V5F6 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 6 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 85% and 93% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 6 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2845
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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The compact (0.4″ × 0.5″) D24V5F9 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 85% and 93% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 9 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2846
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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The compact (0.4″ × 0.5″) D24V5F12 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 12 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 85% and 93% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 12 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2847
Brand: Pololu
Status: Active and Preferred 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
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The compact (0.4″ × 0.5″) D24V5F15 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 15 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 90% and 95% and has a very low dropout, so it can be used with input voltages as low as a few hundred millivolts above 15 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Pololu item #: 2849
Brand: Pololu
Status: Active 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 80% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. High efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps.

Pololu item #: 2850
Brand: Pololu
Status: Active 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. High efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps.

Pololu item #: 2852
Brand: Pololu
Status: Active 
Temporarily out of stock. See product page to backorder.
Out of stock.
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This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 6 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. High efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps.

Pololu item #: 2853
Brand: Pololu
Status: Active 
Temporarily out of stock. See product page to backorder.
Out of stock.
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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. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. High efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps.

Pololu item #: 2854
Brand: Pololu
Status: Active 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 9 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. High efficiencies are maintained at light loads by dynamically changing the switching frequency, and an optional shutdown pin enables a low-power state with a current draw of a few hundred microamps.

Pololu item #: 2111
Brand: Pololu
Status: Clearance 
Temporarily out of stock. See product page to backorder.
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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 #: 2097
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
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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 #: 2098
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
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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 #: 2099
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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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 #: 2100
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
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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 #: 2106
Brand: Pololu
Status: Active 
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Temporarily out of stock. See product page to backorder.
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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 #: 2107
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

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 #: 2108
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

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 #: 2109
Brand: Pololu
Status: Active 
Free add-on shipping in USA 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

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 #: 2103
Brand: Pololu
Status: Not Recommended for New Design 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

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
Brand: Pololu
Status: Not Recommended for New Design 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

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
Brand: Pololu
Status: Not Recommended for New Design 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

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
Brand: Pololu
Status: Not Recommended for New Design 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

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.

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