LM2596S DC-DC Buck Power Supply Module 3-40V Input 1.5-35V Adjustable Output Step Down Converter With Power Indicator For Arduino Electronic Project

LM2596S DC-DC Buck Power Supply Module 📌 Product Overview The LM2596S is a high-efficiency step-down DC-DC buck converter module. It accepts wide DC input from 3V to 40V and provides continuously adjustable DC output from 1.5V to 35V, with maximum output current up to 3A. Equipped with adjustable potentiometer and power indicator LED, this module adopts thickened PCB, solid capacitors and high-Q power inductor. It has mounting holes for easy installation, widely used for car power conversion, electronic device power supply, circuit voltage debugging and DIY embedded power projects. This is a buck module, the input voltage must be at least 1.5V higher than output voltage and cannot boost voltage. ✨ Core Features

• Wide input voltage: DC 3V ~ 40V, adjustable output DC 1.5V ~ 35V
• Max output current: 3A, high conversion efficiency
• Built-in blue adjustable potentiometer for precise voltage tuning
• Power indicator LED for working status check
• Thickened PCB board, solid aluminum electrolytic capacitors and high-Q power inductor
• 2 screw mounting holes for fixed installation
• Compact size, easy to integrate into various power supply systems

📋 Product Parameters

Item	Specification
Chip	LM2596S
Type	DC-DC Step-down Buck Module
Input Voltage	DC 3V ~ 40V
Output Voltage	DC 1.5V ~ 35V continuously adjustable
Max Output Current	3A (recommended 2.5A for long time operation)
Weight	11g
Module size	43 X 21 X 14mm
Working Temperature	-40℃ ~ +85℃
Indicator	Power LED indicator

📐 Dimension Info Module size: 43 X 21 X 14mm ⚠ Important Notes

• This is a buck module, cannot boost voltage. Input voltage must be at least 1.5V higher than output voltage.
• Do not reverse input and output wiring, reverse connection will burn the module.
• For long time working over 10W, heat sink is required.
• Factory default of potentiometer is maximum resistance; rotate counterclockwise about 7-8 turns after power on to adjust output voltage.

🛠 Application Scenarios Car voltage stabilizer power supply, electronic equipment power conversion, circuit voltage debugging, battery power step-down, Arduino and embedded project power supply, DIY adjustable power source.