MyoWare 2.0 Power Shield - power module for the muscle tension sensor

Power supply module with an input voltage from 6 to 12 V and a configurable output voltage of 3.3 V or 5 V. It has holes with a 2.54 mm pitch. Perfect for use with a breadboard. SparkFun PRT-13032

Step-Up converter module with adjustable output voltage in the range from 3 to 30 V with a wide input voltage range from 2 to 24 V and a maximum output current of 4 A. The board is equipped with a USB connector

Step-Down DC-DC converter module based on the D36V6F3 system. Input voltage 4 ... 50V, output voltage 3.3V (max. 600mA). Polol 3791

BMS module for four Li-Ion cells with a voltage of 14.8 V. It has the function of charging with balancer, discharging and over-discharge protection. The cells can be charged with a continuous current of up to 30 A

Step-up DC-DC converter module based on the LM2587 circuit, input voltage 3.5..30V, regulated output voltage 4..30V. The module is equipped with ARK connectors

The Step-Down converter module converts the input voltage of 14 - 26 V to a constant 12 V, with a maximum output current of 3 A, recommended up to 0.8 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

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 9 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

The 9V 10W USB Step-Up Converter module converts 4.2-5.2V input voltage to 9V DC output voltage, with a maximum current of 2A 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.

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

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.

Pololu 2830

The compact (0.4″ × 0.5″) D24V5F15 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 15 V while allowing for a maximum output current of 500 mA. Pololu 2847

Step-Up converter module XL6009 with adjustable output voltage from 1.3 to 35 V, input voltage from 3.8 to 32 V and a maximum output current of 3 A

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

Step-Up converter with adjustable output voltage from 5 to 40 V, input voltage from 3 to 35 V and a maximum current of 5 A