Adapter with a voltage regulator 3.3V for NRF24L01

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

Pololu 5V Step-Up Voltage Regulator U3V50F5

Module with a 5x20 mm fuse with a working voltage up to 250 VAC and a current of 500 mA. A kit for self-assembly. SparkFun KIT-15702

The USB Step-Up 12V 6W converter module converts the input voltage in the range of 4.2-5.2V to a constant output voltage of 12V, with a maximum current of 0.5A and a conversion efficiency of 96%. The device can operate in a wide temperature range, from -40°C to 85°C, which makes it ideal for powering various electronic devices in harsh environments.

DC-DC Step-Up converter U3V40F7 with an output voltage of 7.5 V, an input voltage of 1.3 to 7.5 V and a maximum output current of 4 A. Pololu 4014

Step-Up/Step-Down converter module based on the S13V20F5 system. It has an input voltage from 2.8 to 22 V and an output voltage of 5 V. The current efficiency of the converter is up to 2,5 A. Pololu 4085

Step-Up/Step-Down converter with adjustable output voltage from 0.8 to 33 V, input voltage from 4.5 to 30 V and a maximum current of 5 A. It is equipped with a voltmeter with a display

Pololu Adjustable 4-12V Step-Up Voltage Regulator U3V50ALV

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

ST1PS01AJR evaluation module for testing the 1.9–2.8 V low-power step-down converter. STMicroelectronics STEVAL-1PS01AJR

The Step-Down panel-mounted converter module enables precise regulation of input voltage (6V-70V) and output current (0-5A), with a maximum output power of 300W, conversion efficiency up to 95%, and short-circuit and anti-reverse connection protection. The device, with dimensions of 120mm x 64mm x 72mm, is equipped with continuous regulation functions, with a resolution of 0.01V for voltage and 0.001A for current, and operates in a temperature range of -10 to +75 degrees Celsius.

Step-Down DC-DC converter module based on the D24V150F9 chip. Input voltage 11 ... 40V, output voltage 9V (max 15A). Pololu 2884

Pololu 9V Step-Up Voltage Regulator U3V50F9

The 6V 10W USB Step-Up Converter Module converts 4.2-5.2V input voltage to 6V DC output voltage, with a maximum current of 2A and a conversion efficiency of 96%. The device can operate in a wide temperature range, from -40°C to 85°C, which makes it ideal for powering various electronic devices in harsh environments.

Step-Down converter module converts input voltage (5-23V) to adjustable output voltage (0-16.5V) with maximum current 3A, featuring high precision (1%) and efficiency (up to 95%). Compact size and display make it ideal for various applications, e.g. DIY projects

The protection circuit for one Li-Ion cell with a voltage of 3.7 V. It has the function of charging, discharging and over-discharge protection. The cells can be discharged with a continuous current of up to 12 A