LM2596T 5V Voltage Regulator TO-220 ⚡

The LM2596T 5V Voltage Regulator is a high-efficiency, step-down (buck) DC-DC converter designed to deliver a stable 5V output at up to 3A. Housed in a robust TO-220 package, it provides excellent line and load regulation, making it ideal for powering Arduino and Raspberry Pi accessories, embedded microcontroller systems, and a wide range of electronics components and modules.

Key Features ⭐

• Step-down (buck) regulator with high efficiency and stable 5V output
• 3A continuous output current capability
• Fixed 150 kHz switching frequency for reduced component size
• Adjustable output version available: 1.23V to 37V range (in adjustable variant); this model is fixed 5V
• Excellent line and load regulation for precise voltage control
• Built-in protections: internal thermal shutdown and current limit 🛡️
• TO-220 package for easy heatsinking and prototyping 🔧

Technical Specifications 📋

• Output Voltage: 5V (fixed)
• Output Current: 3A
• Switching Frequency: 150 kHz
• Operating Temperature: -40°C to +125°C
• Package Type: TO-220

Typical Applications 🔌

Engineered for flexibility, the LM2596T 5V suits a wide array of power designs, including:

• On-card switching regulators for digital and mixed-signal boards
• Inverting (positive-to-negative) buck-boost converters for generating negative rails
• Power supplies for battery chargers, LED drivers, and low-voltage system rails
• Reliable 5V supplies for Arduino, Raspberry Pi peripherals, sensors, and microcontroller modules

Design Notes for Engineers and Makers 🧠

• Requires external components: inductor, Schottky diode, and input/output capacitors for proper operation
• Provide adequate heatsinking on the TO-220 package for sustained high-load operation
• Ensure appropriate layout and decoupling to minimize ripple and optimize regulation performance