A handy way to power 12V powered devices with a center-positive 2.1mm DC barrel jack from a USB port. Adafruit 2778

The Step-Up / Step-Down S18V20F12 inverter module gives the output voltage of 12V with a wide input voltage range of 3 ... 30V and a maximum output current of 2A. Polol 2577

Lithium-polymer Li-Po battery with a nominal voltage of 3.7V and a capacity of 1000mAh, equipped with a PCM protection circuit and a lead with a JST 2.54 2-pin connector, 150mm long. Akyga AKY0658

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

Lithium-polymer Li-Po battery with a nominal voltage of 3.7V and a capacity of 400mAh, equipped with a PCM protection circuit and a lead with a 2-pin Molex 1.25 connector, 150mm long. Akyga AKY0822

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

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

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

The Step Down DC-DC converter module (MP2307) allows to obtain 0.93..18V output voltage at 4.75..24V input voltage. The output voltage is regulated by a potentiometer

The Akyga AK-SC-E22 adapter enables charging electric vehicles with the Chinese GB/T socket using Tesla chargers equipped with the NACS connector. It supports single-phase charging up to 32 A (max. 8 kW) and ensures a safe, stable connection with IP55 protection. Akyga AK-SC-E22

Lithium-polymer battery type LP103040 with a nominal voltage of 3.7 V and a capacity of 1200 mAh, equipped with a PCM protection circuit and a JST 2.54 2-pin connector on a 150 mm cable. Akyga AKY0663

Electric vehicle charger for 60V battery systems, 67.2V output voltage, 1.75A charging current, 118W output power, LP16 male connector, 1.2 m cable. Akyga AK-EV-21

Isolated DC-DC power module designed for safe powering of sensitive electronic circuits, offering galvanic isolation up to 3kVRMS, 5V or 5.5V output voltage, and output current up to 300mA. Pololu 5414

Pololu 2832

Pololu 2834

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 6 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.

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.

This synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V with an available output current of around 9 A.