Module with adjustable voltage regulator LM317 1.2-37V 1.5A

Step-Up converter U3V70F15 with an output voltage of 15 V, an input voltage from 2.9 to 15 V and a maximum output current of 10 A. Pololu 2896

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.

I2C-UART converter module with two UART output interfaces. Configuration of I2C addresses allows you to connect up to 4 such modules to one controller, which means extending the board\'s capabilities by 8 UART interfaces. DFRobot DFR0627

A step-down converter that reduces the input voltage from 5.3V to 60V to a stable 5.3V with up to 95% efficiency and up to 6A output current. It offers low standby current (<0.2mA), soft-start functionality, overcurrent, thermal, and reverse polarity protection. Compact and easy to integrate, it is ideal for microprocessor systems, IoT, and automation. Pololu 5572

A step-down converter module that allows you to reduce the input voltage from 5.1–36 V to a stable 5 V, ensuring high efficiency thanks to SMPS technology. A maximum output current of 600 mA allows you to power microcontrollers, IoT modules, and other electronic systems. The device is equipped with short circuit and overheating protection and offers very low quiescent current. Pololu 5593

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 15 V and a maximum input of up to 2 A. Pololu 4946

DC-DC Step-Up converter U3V40F5 with an output voltage of 5 V, an input voltage of 1.3 to 5 V and a maximum output current of 4 A. Pololu 4012

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 12 V and a maximum input of up to 2 A. Pololu 4945

Step-Up converter module with adjustable output voltage in the range from 3 to 30 V with a wide input voltage range from 2 to 24 V and a maximum output current of 4 A. The board is equipped with a USB connector

The 3.3V 3A Step-Down Converter Module is an efficient and compact solution for 3.3V voltage stabilization in various electronic applications.

High-power dual power supply module based on LT1083CP voltage regulators. It has an adjustable output voltage from 1.25 to 48 V DC and an output current of up to 10 A. It provides power for both channels in stereo audio amplifiers

Step-Up converter with an output voltage of 2 to 28 V, an input voltage of 2 to 24 V and a maximum current of 2 A

A step-down converter module that allows for input voltage reduction from 6.1–36V to a stable 6V level, ensuring high efficiency thanks to SMPS technology. A maximum output current of 600mA allows for powering microcontrollers, IoT modules, and other electronic systems. The device is equipped with short circuit and overheating protection and offers very low quiescent current. Pololu 5594

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.

USB-C adapter with 5.1 kΩ resistors for setting safe 5 V power without PD negotiation. Adafruit 6323

Power module based on a DC-DC Step-Down converter with a current efficiency of up to 12 A. The output voltage is adjustable in the range from 0 V to 50 V. The power supply offers power up to 600 W. WZ5012L