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 5 V and a maximum input of up to 2 A. Pololu 4941

The Step-Down converter module converts the input voltage of 5.3 - 26 V to a constant 3.3 V, with a maximum output current of 3 A, recommended up to 1.8 A for long-term operation. The conversion efficiency of the device is 96% and the module size is 22.3 x 17 x 4.2 mm

The S9V11F5 switching step-up/step-down regulator efficiently produces 5V from input voltages between 2V and 16V. Pololu 2836

BMS protection module designed for 13 Li-Ion cells. It has a charging function with balancer option and an over-discharge protection function. Dedicated to an electric bicycle or scooter

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

Pololu 5V Step-Up/Step-Down Voltage Regulator S18V20F5

Step-down DC-DC converter module that converts a 12 V or 11.1 V output voltage (e.g. from a lithium battery) to a voltage in the range of 1.8 V to 5.1 V. It has a power output of up to 60 W, and with an output current of up to 18 A, the module can be used to power a 5 m WS2812 RGB LED strip. DFRobot DFR1025

AP3429A DC-DC Step-Down Converter Module with 1.8 V output voltage, 2.7 to 5.5 V input voltage and 2 A maximum output current. SparkFun COM-21338

Step-Down converter D36V28F12 with an output voltage of 12 V, an input voltage from 12.9 to 50 V and a maximum output current of 3.3 A. Pololu 3786

The Step-Down converter module on the MP1584EN chip converts the input voltage (9-35V) to the regulated output voltage (0.8-25V) with a maximum current of 5A and a power of 25W. It operates in temperatures from -20°C to 75°C and has a compact size of 45 x 31 x 16 mm.

Power supply module with a basket for a 18650 battery. It can provide a current of 3 V and 1 A or 5 V and 2 A

3.3V Power Supply Module Board with Red Indicators, AMS1117-3.3V, RoHS

Step-Down converter module converts input voltage (5-23V) to adjustable output voltage (0-16.5V) with maximum current 3A, featuring high precision (1%) and efficiency (up to 95%). Compact size and display make it ideal for various applications, e.g. DIY projects

The protection circuit for one Li-Ion cell with a voltage of 3.7 V. It has the function of charging, discharging and over-discharge protection. The cells can be discharged with a continuous current of up to 12 A

Pololu Adjustable 4-12V Step-Up Voltage Regulator U3V50ALV

Step-Down converter module with input voltage from 4.75 to 23V, output voltage from 1 to 17V and output current 1.8 A (3 A instantaneous current).