Mini UPS backup power module - Waveshare 24760

The LM317 + LM337 Symmetrical Power Supply provides stable and smoothly regulated symmetrical voltage for electronic and laboratory applications. Suitable for powering audio systems, preamplifiers and test projects where stable, regulated symmetrical voltage is essential. Requires consideration of proper cooling to maintain optimal operating conditions

Step-Up/Step-Down DC-DC converter module. It has an input voltage of 2.8 to 22 V, an output voltage of 7.5 V and a maximum output of 2.5 A to 3.5 A. Pololu 4982

DC-DC Buck Converter 5–36 V with 5 V or 3.3 V output in the DC5-36-TO-DC3V3-5-M version is equipped with terminal and pin headers for quick deployment in power applications. High efficiency, adjustable voltage, and compact size make it suitable for powering microcontrollers, communication modules, and embedded systems.

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

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V. The board measures only 0.7″ × 0.8″, but it allows a typical continuous output current of up to 5 A. Typical efficiencies of 85% to 95% make this regulator well suited for high-power applications like powering motors or servos.

DC-DC Step-up converter module based on the U3V70F9 system. Input voltage 2.9-9V, output voltage 9V, maximum current 10A. Two mounting holes. Polol 2894

Power multiplexer based on Texas Instruments TPS2113A. It enables smooth switching between two power sources from 2.8 V to 5.5 V. Pololu 2596

Step-Down Voltage Regulator D24V25F5. Pololu 2850

BMS system for four Li-Ion cells with a voltage of 16,8 V. It has the function of charging with balancer, discharging and over-discharge protection. The cells can be charged with continuous current up to 60 A and discharged with current up to 80 A

Step Down DC-DC converter module based on LM2596 circuit, input voltage 3-40V, regulated output voltage 1.5--35V

The trigger module is designed for chargers PD 2.0 and PD 3.0. It is equipped with a USB type C input and an output in the form of pads. Allows powering devices with 15V. PDC004

Pololu 2830

Step-Down XL4015 converter module with adjustable output voltage in the range from 1.25 to 36 V with a wide input voltage range from 4 to 38 V and a maximum output current of 5 A

Pololu 24V Step-Up Voltage Regulator U3V50F24

The Step-Up Buck Voltage Regulator module with output voltage of 3.3V and input voltage range of 1-3V and a maximum output current of 200 mA. STMicroelectronics EVAL4971

A high-efficiency UBEC switching regulator for powering receivers and servos in RC models with 2–8 S LiPo batteries. It provides a stable voltage of 5.25 V with a load of up to 5 A, with power reserve for temporary overloads, ideal for large models requiring a reliable power source.