LM2596 Adjustable DC-DC Buck Converter Module 3A (7-35V to 1.25V-30V Step-Down Power Supply)

Description

Product Overview

The LM2596 Adjustable DC-DC Buck Converter Module is a high-performance step-down switching regulator based on the industry-standard LM2596 chip from Texas Instruments . This versatile module efficiently converts higher DC voltages (from 7V to 35V) into a lower, continuously adjustable output voltage ranging from 1.25V to 30V, making it an essential tool for powering a wide variety of electronic devices.

Unlike traditional linear voltage regulators that dissipate excess energy as heat, this switching regulator uses Pulse Width Modulation (PWM) technology to achieve conversion efficiencies of up to 92% . This means it runs much cooler and wastes significantly less power, making it ideal for battery-powered or enclosed applications. The module is capable of delivering up to 3A of continuous output current, enough to power an Arduino, Raspberry Pi, high-power LED strips, or other 5V/12V logic systems.

The module features a simple three-terminal interface and an onboard precision potentiometer for adjusting the output voltage. This makes it a favorite among electronics hobbyists, educators, and professionals for creating custom power supplies, retrofitting old electronics, and developing IoT devices .

Key Features

• Adjustable Output Voltage: Continuously adjustable output from 1.25V to 30V via an onboard precision potentiometer, allowing you to set exactly the voltage your project needs .

• High-Efficiency Step-Down Conversion: Utilizes the LM2596 switching regulator to achieve up to 92% efficiency, minimizing power loss and heat generation compared to linear regulators .

• Wide Input Voltage Range: Accepts DC input from 7V to 35V, making it compatible with common 12V automotive, 24V industrial, and other higher voltage systems .

• 3A High Output Current: Capable of delivering up to 3A of output current. For loads above 2A, a heatsink is recommended to maintain optimal performance .

• High Switching Frequency: Operates at a fixed 150kHz internal oscillator, allowing for smaller-sized filter components and lower output ripple compared to older regulator designs .

• Low Output Ripple: Delivers clean power with output ripple typically ≤ 50mV, suitable for sensitive electronics like microcontrollers and audio equipment .

• Built-in Protection: Includes thermal shutdown and current limit protection to safeguard the module and your connected devices under fault conditions .

• LED Indicator: An onboard LED provides clear visual confirmation when the input power is applied and the module is operational.

• Compact Size: Small PCB footprint (approx. 48mm × 23mm × 14mm) allows for easy integration into a variety of projects .

Technical Specifications