ZK-4KX - DC 30V 4A power supply unit

Buck-mode DC-DC power module that converts voltage from 8 V to 28 V to a stable 5 V at a maximum current of 1.6 A, providing high conversion efficiency. Thanks to its small size, stability and reliability, the module is perfect for DIY projects, mobile power supply construction and applications requiring precise, stable voltage. DFRobot DFR0571

Step-Down converter with an output voltage of 5 V, input voltage from 4.5 to 40 V and a maximum current of 2 A. The board is equipped with a segment LED display and a USB output

Step-Down converter D36V28F9 with an output voltage of 9 V, an input voltage from 9.8 to 50 V and a maximum output current of 3.4 A. Pololu 3785

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36V and efficiently reduces it to 5V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.5A and features reverse voltage protection. Pololu 2858

VRM: Voltage Regulator Module (Rev. B) is a step-down converter based on the Texas Instruments TPS54620 chipset. Input voltage in the range 5 ... 15 V, output voltage 3.3 V or 5 V. Digilent 210-156

Step-Down converter D36V50F9 with an output voltage of 9 V, an input voltage from 9.9 to 50 V and a maximum output current of 7 A. Pololu 4094

The Step-Down D24V3F12 Buck Voltage Regulator module gives the output voltage of 12V with a wide input voltage range of 14.5-42V and a maximum output current of 300 mA. Pololu 2100

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.

A power supply based on a DC-DC converter with a current capacity of up to 5.1 A. The input voltage can range from 5 V to 30 V, while the output voltage is adjustable from 0 V to 36 V. It has built-in WiFi communication. XY3605

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.

The Step-Down D24V3AHV Buck Voltage Regulator module with adjustable output voltage in the range of 4-25V with a wide input voltage range of 4.5-42V and a maximum output current of 300 mA. Pololu 2102

Pololu 2832

DC-DC Step-Down converter module AP63203 with an output voltage of 3.3 V, an input voltage of 3.8 to 32 V and a maximum output current of 2 A. SparkFun COM-18357

Step-Down converter D36V50F12 with an output voltage of 12 V, an input voltage from 13.3 to 50 V and a maximum output current of 6.5 A. Pololu 4095

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 9 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output.

DC-DC step-down converter module 12V 12A used to convert energy from 15-24V input voltage to stable 12V, providing up to 12A current. Thanks to high conversion efficiency (over 90%) and low ripple (<50mV), it is ideal for powering sensitive devices in applications such as robotics, drones or LED lighting systems. Additionally, built-in overheating and short-circuit protection mechanisms ensure reliable operation even in difficult conditions. DFRobot DFR1208