Qwiic Power Switch - electronic power switch

The Step-Down D24V3AHV Buck Voltage Regulator module with adjustable output voltage in the range of 4-25V with a wide input voltage range of 4.5-42V and a maximum output current of 300 mA. Pololu 2102

This powerful boost regulator efficiently boosts input voltages as low as 2.9 V to a higher, adjustable output voltage between 9 V and 30 V while allowing an input current as high as 5 A.

A passive on/off power switch that provides control and feedback functions, allowing you to start and safely shut down your system with short presses of the button, while a long press forces the power off. The Mk2 version, based on the 74LVC1G175 D-type flip-flop digital design, eliminates the problems of component tolerance and temperature variation, and also offers additional improvements such as a 2A self-resetting fuse, LED indicators, and the ability to connect a larger external button. SparkFun SPX-25365

Step-Up/Step-Down DC-DC converter module. It has an input voltage of 2.8 to 22 V, an output voltage of 9 V and a maximum output of 2.5 A to 3.5 A. Pololu 4983

The Step-UpU1V11A Buck Voltage Regulator module with adjustable output voltage 2-5.25V, input voltage range of 0.5-5.5V and a maximum output current of 1.2A. Pololu 2560

Step-Up/Step-Down DC-DC converter module. It has an input voltage of 2.8 to 22 V, an output voltage of 6 V and a maximum output of 2.5 A to 3.5 A. Pololu 4981

Step-Down converter D36V28F5 with an output voltage of 5 V, an input voltage from 5.3 to 50 V and a maximum output current of 4 A. Pololu 3782

Step-Down converter with adjustable output voltage from 4.2 V to 15 V and output voltage up to 45 V. It is equipped with reverse voltage protection, input undervoltage lockout, overload and short circuit protection. Pololu 4854

DC-DC Step-Down converter module with 5V output voltage and 1A output current. The module can be a replacement for the popular LM7805 regulator.

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 9 V and a maximum input of up to 2 A. Pololu 4944

The STEVAL-ISB043V1 is a Qi-based 2.5 W wireless power receiver evaluation board based on the STWLC33 and suitable for wearable applications. The STEVAL-ISB043V1 provides a complete kit, which includes the STWLC33 IC, firmware, layout and tools

A switching converter that regulates 24V voltage 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 5588

The Step-Down D24V6F9 Buck Voltage Regulator module gives the output voltage of 9V with a wide input voltage range of 11.5-42V and a maximum output current of 600 mA. Pololu 2108

Adapter with 3.3V voltage regulator designed for NRF24L01 modules with 8-pin connector

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

The 12V 10W USB Step-Up Converter Module converts 4.2-5.2V input voltage to 12V DC output voltage, with a maximum current of 1A 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.