LM2577S LM2596S Adjustable Step-Up & Step-Down DC-DC Converter Module – 3.5V-28V to 1.25V-26V

The LM2577S + LM2596S Automatic Boost & Buck Converter Module is a versatile DC-DC voltage regulator designed for applications requiring both step-up (boost) and step-down (buck) power conversion. With a wide input voltage range of 3.5V to 28V and adjustable output between 1.25V to 26V, this compact power supply board provides stable output for a variety of DIY electronics, embedded systems, and battery-powered devices.

⚙️ Technical Specifications

• 🔋 Input Voltage: DC 3.5V ~ 28V
• ⚡ Output Voltage: Adjustable DC 1.25V ~ 26V
• 🔌 Output Current: 1A (stable) ~ 3A (max, with proper heat dissipation)
• 🎚️ Adjustment: Clockwise to increase, counterclockwise to decrease voltage
• 🔧 Wiring Method: Terminal block for easy connection

💡 Key Features

• 🔄 Automatic buck-boost operation (no manual switching needed)
• 📦 Compact and efficient design
• 🔥 Built-in over-temperature and short-circuit protection (with heatsink recommended at high loads)
• 🔋 Ideal for battery-powered systems, DIY projects, robotics, and solar applications

🛠️ Applications

• 📱 DIY battery packs and power banks
• 🔌 Voltage regulation for embedded systems
• 🚗 Automotive electronics
• 📡 Sensor and microcontroller power supplies
• 🔆 LED drivers and lighting projects

📦 Package Includes

• 1 × LM2577S LM2596S Step-Up/Step-Down DC-DC Power Supply Module
• 1 × Screw Package

This powerful yet compact module makes voltage regulation easy and flexible, offering reliability and convenience for makers, hobbyists, and professionals alike.