DC-DC Step-Down Converter - LM2596

Buck converter with LM2596 is used to reduce DC voltages. The operating input voltage is 4.5V to 30V , and the output 1.3V to 30V. It is built on the basis of an integrated circuit LM2596, which is a buck converter (step down) with a built-in power transistor. The circuit works with very few external components and is therefore preferred for building this type of converter board. The integrated circuit provides an efficiency of up to 92% in optimal cases. Quiescent consumption is also low when no load is connected – 5mA. The built-in power transistor allows use with loads of up to about 2A, and with additional cooling – up to 3A.

Advantages of DC-DC buck converter with LM2596

• Miniature board dimensions allow easy integration into devices

• Presence of two mounting holes – stable fixing in mobile devices

• Easy adjustment of output voltage – with a precision potentiometer

• High performance – with a heatsink mounted, output currents of up to 3A are achieved

Applications of DC-DC buck converter with LM2596

• Automotive applications

• Industrial applications

• Applications in battery-powered supplies

• Providing multiple output voltages from a single input in compact devices

Wiring diagram: