Adapter with a voltage regulator 3.3V for NRF24L01

Step-Down converter D36V50F6 with an output voltage of 6 V, an input voltage from 6.5 to 50 V and a maximum output current of 8 A. Pololu 4092

A step-down converter that reduces the input voltage from 9V to 60V to a stable 9V with up to 95% efficiency and 5A 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 5576

Power switch that allows you to control your system\'s power on and off with simple button presses, with the ability to force shutdown after 10 seconds. It features a durable control circuit, LEDs, a self-resetting fuse, and offers low quiescent current, making it ideal for energy-efficient projects. SparkFun PRT-26993

A step-down converter module that allows you to reduce the input voltage from 9.2–36V to a stable 9V, ensuring high efficiency thanks to SMPS technology. A maximum output current of 600mA allows you to power microcontrollers, IoT modules, and other electronics. The device is equipped with short circuit and overheating protection and offers very low quiescent current. Pololu 5596

Step-Up converter U3V70F7 with an output voltage of 7.5V, an input voltage from 2.9 to 7.5 V and a maximum output current of 10 A. Pololu 2893

BMS module for four Li-Ion cells with a voltage of 14.8 V. It has the function of charging with balancer, discharging and over-discharge protection. The cells can be charged with a continuous current of up to 30 A

DC-AC converter, also referred to as an inverter. Converts a constant voltage (DC) of 12 V to an alternating voltage (AC) of 220 V

Voltage converter module with a symmetrical output of ± 15 V with a maximum power of 150 W. Used, among others, to power audio amplifiers

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 Step-Down D24V6F9 Buck Voltage Regulator module gives the output voltage of 9V with a wide input voltage range of 11.5-42V and a maximum output current of 600 mA. Pololu 2108

Pololu 2834

Module with the HUSB238 chip, which allows for flexible configuration of the voltage and current supplied through the USB PD port. It allows both manual setting of parameters using jumpers and dynamic control via the I2C bus. Equipped with a USB Type C connector. Adafruit 5807

The lead module for the ATX power supply has 24 pins, a switch and 4 voltage modes, providing flexibility in device testing. Its compact dimensions of 12.8 cm x 4.8 cm and built-in fuses guarantee easy installation and safe use.

Step-Up converter with an output voltage of 12 to 80 V, an input voltage of 8 to 60 V and a maximum current of up to 20 A

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. Pololu 2847

Pololu 5V Step-Up/Step-Down Voltage Regulator S18V20F5