LM2575T-12 (LM2575 Step-Down 12V Voltage Regulator)

Overview

The LM2575T-12 is a robust, easy-to-use step-down (buck) voltage regulator that converts a higher input voltage (up to 40V) into a stable 12V output. It is part of the LM2575 series, renowned for its simplicity and reliability. With its built-in 52 kHz oscillator, thermal shutdown, and current limiting, this regulator is a perfect choice for hobbyists and professionals who need an efficient power supply for their projects. Whether you're building a robotics project, an automotive application, or a bench power supply, the LM2575T-12 provides a straightforward solution without the complexity of discrete component design.

Key Features

• Simple and Reliable: Requires minimal external components (just capacitors and a diode) to function, making it ideal for breadboarding and prototyping.
• High Efficiency: Switching regulator design offers higher efficiency compared to linear regulators, reducing heat dissipation and extending battery life.
• Wide Input Voltage Range: Accepts input voltages from 4.75V to 40V, providing flexibility for various power sources.
• Fixed 12V Output: Delivers a constant 12V output with excellent line and load regulation.
• Built-in Protections: Includes thermal shutdown and current limiting to safeguard your circuit.
• TO-220 Package: Standard package that is easy to mount on a heatsink or PCB.

Technical Specifications

• Output Voltage: 12V (fixed)
• Input Voltage Range: 4.75V to 40V
• Output Current: Up to 1A (with adequate cooling)
• Switching Frequency: 52 kHz
• Line Regulation: 50 mV (typical)
• Load Regulation: 100 mV (typical)
• Operating Temperature: -40°C to +125°C
• Package: TO-220-5 (5 pins)
• Datasheet: Refer to the official LM2575 datasheet for detailed specifications and application notes.

Applications & Use Cases

• Power Supplies: Ideal for building a 12V power supply from a higher voltage source, such as a 24V battery or solar panel.
• Robotics: Powering motors, sensors, and microcontrollers in robotic projects.
• Automotive: Suitable for automotive applications where battery voltage can vary (e.g., 12V to 24V systems).
• LED Lighting: Driving high-power LED strips or arrays that require a regulated 12V.
• Industrial Control: Used in control systems that need a stable 12V rail.
• DIY Electronics: Perfect for hobbyist projects like audio amplifiers, bench power supplies, and more.

What's Included

• 1x LM2575T-12 Step-Down Voltage Regulator (TO-220 package)
• (Note: External components like capacitors, diode, and inductor are not included and must be sourced separately.)

Compatibility

• Microcontrollers: Works with Arduino, Raspberry Pi (via 12V input for some models), STM32, and other boards that require a 12V power supply.
• Sensors: Compatible with 12V sensors and actuators commonly used in automation.
• Motor Drivers: Can power motor drivers that require a stable 12V input.
• Breadboards: Easy to integrate into breadboard circuits with appropriate components.
• Heatsinks: Compatible with standard TO-220 heatsinks for high-current applications.

MOKWN Recommendation

The LM2575T-12 is a versatile and reliable choice for any project requiring a stable 12V supply. Its simplicity and efficiency make it a staple in the maker community. For best performance, ensure you follow the application circuit in the datasheet and use proper heat sinking when drawing high currents. At MOKWN, we recommend this regulator for enthusiasts and professionals alike – it's a must-have in your electronics toolbox. Order now and power up your next creation with confidence!