UPS 3S module (EU) backup power supply - Waveshare 25603

A step-down converter that reduces the input voltage from 6V to 60V to a stable 6V with up to 95% efficiency and 5.5A output current. It offers low standby current (<0.2mA), soft-start, overcurrent, thermal, and reverse polarity protection. Compact and easy to integrate, it is ideal for microprocessor systems, IoT, and automation. Pololu 5573

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

DC-DC Step-Up/Step-Down Converter Module. It has an input voltage of 1.4 to 16 V, an output voltage of 3.3 V and a maximum output current of 1 A to 1.5 A. Pololu 4964

Power switch that allows for controlled system 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-27081

DC-DC Step-Down Converter ME3116AM6G with an output voltage of 5 V, input voltage from 6 to 24 V and a maximum output current of 1 A. Dedicated to the M5Stack modules. M5Stack U125

The converter module converts the voltage in the range of 3-7.2V to 200KV with an efficiency of over 90%. It is compact with dimensions of 24 x 64 mm and operates in temperatures from -40°C to 85°C.

The compact (0.4″ × 0.5″) D24V5F12 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 12 V while allowing for a maximum output current of 500 mA.

Power switch that enables efficient power management of devices in the Qwiic ecosystem, allowing selective shutdown of devices and energy saving. The module offers I2C bus isolation, additional GPIO pins and works with SparkFun Qwiic Mux, making it easy to control multiple devices in your projects. SparkFun PRT-26784

Step-up DC-DC converter module, 0.9-5V input voltage, 5V output voltage (max. 500 mA) connected to the USB socket. There is a diode on the board indicating the power connection

Step-Down XL4005 converter module with adjustable output voltage in the range from 0.8 to 30 V with a wide input voltage range from 4.5 to 30 V and a maximum output current of 5 A

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

Przetwornica DC-DC Step Down (MP1584), Uwe 4.5..28V, Uwy regulowane 0.8..20V, RoHS

This small synchronous switching step-down (or buck) regulator takes an input voltage from 4 V to 36 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.6 A and features reverse voltage protection.

Safety system for two Li-Ion cells with 7.4V. The module has the function of charging cells with the balancer, discharging and the function of protecting the cells against discharge. Cells can be charged with continuous current up to 5A. modBMS5A

DC-DC Step-Down converter module. It has an input voltage from 12 to 45 V, an output voltage of 12 V and a maximum output current of up to 2.8 A. Pololu 4896

An efficient step-down converter that reduces the input voltage to 5 V at a maximum current of 100 mA, offering high efficiency due to low quiescent current (<20 μA). It supports input voltages from 5 V to 65 V, has short circuit and overheating protection, making it a reliable and energy-efficient solution. Pololu 5363