3A DC-DC Buck Converter with LED Display Adjustable 1.5V-35V 3A Voltage Regulator

The 3A DC-DC LM2596 Buck Converter features a high efficiency voltage regulator with LED display. It has an adjustable output range from 4-40V to 1.5-35V.

Efficient: High efficiency voltage regulator with up to 96% conversion efficiency Adjustable: Adjustable output voltage range from 1.5V to 35V for versatile use High Capacity: Capable of handling up to 3A of current for powering various devices LED Display: Built-in LED display for easy monitoring of output voltage Wide Input Range: Input voltage range from 4V to 40V for compatibility with a wide range of power sources【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects 【Input Voltage】DC 4V to 40V ( Input Voltage Must 1.5V Higher Than Output Voltage or More, this is a step-down module, the input voltage is higher than the required output voltage. )【Output Voltage】DC 1.5V to 35V voltage is continuously adjustable, high efficiency (maximum 92%) of the maximum output current of 3A. (Do not reverse the input and output interface.)【Easy to DIY】Connect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage. (Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V)【Applications】LM2596S module widely use for DIY mobile power, monitor power supply, power buggies, vehicle power supply communications equipment supply, etc. Note: Keep output under 2A (or 15W), and use a heat sink when for a long time workingSpecifications Input Voltage: DC 4V-40V Output Voltage: DC 1.5V-35V (adjustable) Output Current: 3A (MAX) Conversion Efficiency: 92% (max.) Switching Frequency : 65KHz Rectification: non-synchronous rectification Module property: non-isolated buck module Operating Temperature: -45°C (-49°F) to +85°C (185°F) Load Regulation: ± 0.5% Voltage Regulation: ± 2.5% Size: approx. 6.6x3.9x1.8cm/ 2.6x1.5x0.7in Weight: 21gThickened circuit boards Short circuit and over-temperature protection tested, sealed in anti-static packaging How to use 1.Press the button in a short time( 1 second) so that “in” LED lighted, the voltmeter shows the value of input voltage 2.Press the button in a short time( 1 second) again so that “out” LED lighted, the voltmeter shows the value of output voltage 3.Rotate the top screw of potentiometer clockwise to boost the value of the output voltage, anti clockwise to reduce itHow to Calibrate the Digital Tube Voltmeter 1. Short press the left "ON/OFF" button to start up the digital tube voltmeter. Long press(>1s, <4 seconds) the left button to shut down the digital tube voltmeter 2. Long press(>4 seconds) the left button to enter self-calibration of voltage measurement(calibration range: -0.5-0.5V, factory setting is 0.0) IN indicator lights = input voltage measurement calibration starts. Then, long press( >2 seconds) the right "Mode" button, "OUT" indicator lights =3. After calibration, long press(>2 seconds) the right "Mode" button to preserve the adjusted value(no loss with outage) and back to normal voltage display Package List: 1 x LM2596 Buck Converter Module