Power module for Wemos D1 Mini

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 15 V and a maximum input of up to 2 A. Pololu 4946

An efficient step-down converter that reduces the input voltage to 12 V at a maximum current of 100 mA, offering high efficiency thanks to low quiescent current (<50 μA). It supports input voltages from 12 V to 65 V, has short circuit and overheating protection, making it a reliable and energy-efficient solution. Pololu 5367

The 3.3V 3A Step-Down Converter Module is an efficient and compact solution for 3.3V voltage stabilization in various electronic applications.

Step Down converter module with an output voltage from 5 to 12 V and a maximum load of 3.4 A. The board is equipped with two USB connectors and has a built-in fast charging function for smartphones

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

Step-Down converter with adjustable or constant output voltage from 0.8 to 17 V, input voltage from 4.5 to 24 V and a maximum current of up to 3 A

Step DC-DC converter, Uwe 3.5-30 V, adjustable 4-30 V, RoHS

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

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

The S9V11F3S5CMA switching step-up/step-down regulator efficiently produces a fixed 3.3 V (default) or 5 V (selectable) output whether it is higher or lower than the input voltage, which can range from 2 V to 16 V. (Note: minimum start-up voltage is 3 V, but it operates to 2 V after that.)

DC-DC Step-Down Converter Module AP63357 with 5V output voltage, 3.8 to 32V input voltage and 3.5A maximum output current. It has a very small board format, so it can be used in any project. SparkFun COM-21256

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

This regulated DC-DC buck switching power supply supports an input voltage of 6 to 70V and an output voltage of 0 to 60V at a current rating of up to 15A (20A peak). It features high-precision voltage and current displays and quick-select switches for standard voltages. The module features an intelligent cooling system and numerous safety features, making it a safe and reliable solution for precision powering electronics, battery testers, LED systems, and industrial applications. XY6015L

The Step-Up converter module with a power of 65W converts the voltage in the range of 3-35V to 3.5-35V with an efficiency of over 96%. Equipped with a voltmeter, it operates in temperatures from -40°C to 85°C.

The S7V8F3 step-up/step-down converter regulates the voltage at 3.3 V, supporting an input voltage range of 2.7 V to 11.8 V, making it ideal for battery-powered applications. With an efficiency of over 90% and protection against short circuits and overheating, it provides reliable and energy-efficient operation in a wide range of conditions. Pololu 2122

A switching converter that regulates 9V 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 5584