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D-SUN Step-down Voltage...

D-SUN Step-down Voltage Regulator - 1,0V-17V 1,8A

Module with step-down converter. Input voltage from 4.75 V to 23 V. Maximum continuous output current 1,8 A. Output voltage adjustable from 1.0 V to 17 V.
5.0 (11)
Index: MOD-08229
Index: MOD-08229
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Step-Down Voltage Regulator...

Step-Down Voltage Regulator XL4015 - 1,3V-36V 5A

Module with XL4015 step-down pulse inverter. Input voltage from 3.3 V to 36 V. Maximum continuous output current 5 A. Output voltage adjustable from 1.3 V to 36 V.
5.0 (25)
Index: MOD-08103
Index: MOD-08103
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Regular price €4.50 Price €4.50
Step-Down Voltage Regulator...

Step-Down Voltage Regulator with Display LM2596 - 3.2V-35V 3A

LM2596 step-down converter module. Input voltage from 3.2 V to 35 V. Maximum continuous output current 3 A. Output voltage adjustable from 3.2 V to 35 V. Built-in display shows...
5.0 (23)
Index: MOD-04871
Index: MOD-04871
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D24V5F1 1.8V 500mA step-down converter

Step-Down Voltage Regulator D24V5F5 - 5V 0,5A - Pololu 2843

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 5.1 V to 36 V to an output value of 5.0 V. The maximum continuous current...
4.7 (5)
Index: PLL-03110
Index: PLL-03110
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Regular price €6.50 Price €6.50
Hi-Link power supply HLK-PM01 100V-240VAC / 5VDC - 0,6A

Hi-Link Power Supply HLK-PM01 100V-240VAC / 5VDC - 0.6A

The HLK-PM01 power supply from Hi-Link converts mains voltage (AC) from 100V to 240V into 5V direct current (DC) with a current capacity of 0.6A. It is ideal for powering...
5.0 (9)
Index: DNG-10929
Index: DNG-10929
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DFRobot - adjustable step-down converter

Step-Down Voltage Regulator - adjustable 3,3V - 25V 5A - DFRobot DFR0205

Inverter module for converting input voltage from 3.6 V to 25 V, to output voltage from 3.3 V to 25 V. The current capacity for 5 V is 5 A. The input voltage must be higher...
5.0 (4)
Index: DFR-15090
Index: DFR-15090
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AP63203 - step-down...

AP63203 - step-down BabyBuck voltage regulator - 3,3V 2A - SparkFun COM-18357

Step-down converter , made by SparkFun. The AP63203 voltage regulator changes the input voltage from 3.8 V to 32 V to the output: 3,3 V . The current capacity of the...
5.0 (1)
Index: SPF-20235
Index: SPF-20235
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Przetwornica regulowana 4V -25V

Step-Down Voltage Regulator D24V6F5 - 5V 0,6A - Pololu 2107

Converter, type step down with an output voltage of 5 V. The maximum current up to 600 mA. Supply voltage ranges from 6 V to 42 V.
5.0 (2)
Index: PLL-01349
Index: PLL-01349
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SparkFun MOSFET Power...

SparkFun MOSFET Power Switch and Buck Regulator - Low-Side - SparkFun COM-23979

The SparkFun MOSFET Power Switch and Buck Regulator combines two functionalities - it works as a step-down regulator and a low-voltage switch at the same time. It is...
Index: SPF-24583
Index: SPF-24583
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D24V5F1 1.8V 500mA step-down converter

Step-Down Voltage Regulator D24V5F3 - 3,3V 0,5A - Pololu 2842

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 3.4 V to 36 V to an output value of 3.3 V. The maximum continuous current...
5.0 (7)
Index: PLL-03109
Index: PLL-03109
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Regular price €6.00 Price €6.00
Step-Down Voltage Regulator...

Step-Down Voltage Regulator D24V90F5 - 5V 9A - Pololu 2866

Step-down converter module with 80 % - 95 % efficiency. It converts an input voltage from 5 V to 38 V into a 5 V output value. The maximum continuous current is 9 A.
Index: PLL-02580
Index: PLL-02580
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Przetwornica regulowana 4V -25V

Step-Down Voltage Converter D24V22F5 - 5V 2,5A - Pololu 2858

Converter, type step down, with an output voltage of 5 V. Maximum current is 2.5 A. The voltage is in the range of 5.3 V to 36 V. Module dimensions - 18 x 18 mm.
Index: PLL-04978
Index: PLL-04978
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Regular price €12.90 Price €12.90
Hi-Link Power Supply...

Hi-Link Power Supply HLK-PM03 100V-240VAC / 3.3VDC - 1A

The HLK-PM03 power supply from Hi-Link converts mains voltage (AC) from 100 V to 240 V into 3.3 V direct current (DC) with a current capacity of 1 A. It is ideal for powering...
5.0 (4)
Index: DNG-10928
Index: DNG-10928
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5V/1A Converter Module -...

5V/1A Converter Module - ME3116AM6G - Unit Expansion Module for M5Stack Development Modules

Unit type extension compatible with M5Stack product series - M5Stack Core, M5Stack Atom and M5Stick. The module is equipped with ME3116AM6G chip which reduces the input...
5.0 (1)
Index: MSS-20160
Index: MSS-20160
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D24V5F1 1.8V 500mA step-down converter

Step-Down Voltage Regulator D24V5F12 - 12V 0,5A - Pololu 2846

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 12.1 V to 36 V to an output value of 12.0 V. The maximum continuous current...
5.0 (2)
Index: PLL-03113
Index: PLL-03113
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D36V28F5 - Step-down converter - 5V 3.2A - Polyol 3782

Step-Down Voltage Converter D36V28F5 - 5V 3,2A - Pololu 3782

Step-down converter with 5 V output voltage and capacity from 2.5 A to 4 A , typical 3.2 A. Powered from 5.3 V to 50 V. The board dimensions are 20 x 18 mm.
5.0 (3)
Index: PLL-17169
Index: PLL-17169
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D30V30F7 - step-down...

D30V30F7 - step-down inverter - 7,5V 3A - Pololu 4894

Step-down converter equipped with a D30V30F7 voltage regulator. The module reduces the input voltage, which is in the range from 7.5 V to 45 V, giving an output voltage of...
Index: PLL-24072
Index: PLL-24072
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SparkFun BabyBuck Regulator...

SparkFun BabyBuck Regulator Breakout - step-down 5V 3A - AP63357 - SparkFun COM-21256

The step-down converter in the BabyBuck version equipped with the AP63357 voltage regulator by Diodes Inc. Using it, you can convert the input voltage in the range from 6 V...
4.0 (1)
Index: SPF-22681
Index: SPF-22681
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LM3671 3.3V 0.6A step-down converter

Step-Down Voltage Regulator LM3671 - 3.3V 0.6A - Adafruit 2745

A step-down pulse inverter module with an efficiency of 90 % - 95 %. Converts the input voltage from 3.5 V to 5.5 V to an output value of 3.3 V. The maximum continuous current...
3.0 (2)
Index: ADA-04967
Index: ADA-04967
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D24V50F5 5V 5A step-down converter

Step-Down Voltage Regultor D24V50F5 - 5V 5A - Pololu 2851

Step-down converter with 5 V output voltage. The maximum current is 5 A. The supply voltage is in the wide range from 6 V to 38 V. The module dimensions are 20 x 18 mm.
5.0 (1)
Index: PLL-02754
Index: PLL-02754
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Regular price €30.50 Price €30.50
Polol D36V50F5 - 5V 5.5A step-down converter

Step-Down Voltage Regulator D36V50F5 - 5V 8A - Pololu 4091

A step-down converter with a 5 V output voltage , operates on an input voltage in the range from 5.5 V to 50 V. The current capacity is 3.5 to 8 A.
5.0 (1)
Index: PLL-16392
Index: PLL-16392
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D36V28F12 - Step-down converter - 12V 2.4A - Polyol 3786

Step-Down Voltage Converter D36V28F12 - 12V 2,4A - Pololu 3786

Small step-down converter with 12 V output voltage and 2.4 A current capacity. Powered by 12.9 V to 50 V . The module dimensions are 20 x 18 mm.
5.0 (3)
Index: PLL-17175
Index: PLL-17175
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D24V10F3 3.3V 1A step-down converter

Step-Down Voltage Regulator D24V10F3 - 3,3V 1A - Pololu 2830

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 3.4 V to 36 V to an output value of 3.3 V. The maximum continuous current...
5.0 (2)
Index: PLL-03018
Index: PLL-03018
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Regular price €9.50 Price €9.50
D24V10F3 3.3V 1A step-down converter

Step-Down Voltage Regulator D24V10F12 - 12V 1A - Pololu 2834

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 12.1 V to 36 V to a 12 V output value. The maximum continuous current is 1 A.
5.0 (4)
Index: PLL-03022
Index: PLL-03022
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Regular price €10.90 Price €10.90

See also

Stabilizers and converters.

Step-down converters that you can get in our Botland store are an alternative to linear stabilizers with much greater capabilities. Linear stabilizers are used to maintain a constant output voltage by using an additional element, usually a transistor. The regulatory system monitors the output voltage and, if necessary, corrects the voltage, which allows for no disturbances in the power supply, all at a low purchase cost and simplicity of operation, but not without drawbacks. The surpluses are converted into heat and it is not possible to change the voltage, which is where an alternative comes in the form of step-down converters.

Principle of operation of step down converters

Pulse converters work on a simple principle: the electronic system contains a coil that is cyclically connected to the power source. If the voltage in it is added to the input, it is a voltage-boosting system, otherwise it is a voltage-lowering system. However, there is a problem with such systems, namely the coil requires charging with current. During charging, the receiver connected to the output cannot be powered. To avoid output voltage fluctuations, a capacitor is used as a filter. Despite this, this solution is not perfect, the output voltage always fluctuates. Excessive interference may cause the entire system to malfunction.

Application of converters.

Step-down converters are used to convert DC voltage, which they do with high efficiency due to low power losses. This makes the converters perfect for battery-powered systems. Stabilizers convert excess voltage into heat, and converters, thanks to their high efficiency, heat up almost imperceptibly. It must be remembered that raising the voltage is usually less efficient than lowering it, so it is better to have a high supply voltage and lower it than too low and raise it.

Step-down converters - FAQ

Small, modular step-down converters mounted directly on the device's printed circuit board or connected to it via cables are perfect for small systems with relatively low power consumption - we especially recommend Pololu products. In the case of high-power devices, it is worth choosing modules in housings with a heat sink, e.g. AZO Digital PE-16 24/13.8V 150W.

The heart of the step-down pulse converter is an electronic controller that controls the switching of the output transistor. An element necessary for the operation of the system is also a choke (coil) or a transformer, whose task is to store and release electrical energy in the rhythm of the operation of the keying element.