Qwiic Power Switch - electronic power switch

This ideal diode module allows for safe connection of two power supplies to a common output point, preventing reverse current flow. Built-in 20mΩ resistors allow for simple voltage compensation and load balancing between the power supplies. The board offers flexible input and output connectors, facilitating integration into industrial and hobby systems requiring high power reliability. Pololu 5398

BMS module for two 7.4V lithium cells. Charging, discharging and over-discharge protection. The cells can be charged with a continuous current of up to 20 A

 Pololu 2831

DC-DC Step-Up/Step-Down Converter Module. It has an input voltage of 1.4 to 16 V, an output voltage of 6 V and a maximum output current of 1 A to 1.5 A. Pololu 4966

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 synchronous step-down converter that reduces input voltage from 18V to 60V to a stable 18V with up to 95% efficiency and 4A 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 5578

Step-Down DC-DC converter module based on the D36V6F5 chip. Input voltage 5.2..50V, output voltage 5V (max. 600mA). Pololu 3792

An efficient step-down converter that steps down the input voltage from as low as 45 V to a regulated output voltage range of 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.4 A. It has built-in reverse polarity, overload and short circuit protection, and the spread spectrum function reduces EMI interference. Pololu 4873

The energy harvesting module based on the LTC3588 chip, which is a complete energy harvesting solution for sources such as piezoelectric, solar or magnetic transducers. SparkFun BOB-09946

Module with a single-purpose LiPo charger and Step-Up converter with an output voltage of 5 V and current efficiency up to 1 A. SparkFun PRT-14380

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

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.

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

A switching converter that regulates 18V from an input range of 2.6V to 20V. It offers high efficiency of 70-95% and the ability to operate with a continuous input current of up to 900mA and a peak current limit of 2.2A. With a switching frequency of 1.6MHz and a power-saving mode, it is suitable for both high-performance and low-power applications. Pololu 5587

Step-Down DC-DC converter module based on the D36V6F6 chip. Input voltage 6.2..50V, output voltage 6V (max. 600mA). Pololu 3793

BMS protection circuit designed for 5 Li-Ion cells. It has a charging function with balancer option, a discharging function and an over-discharge protection function. HXYP-C47-MA18-5S