LM2576T-ADJ (LM2576 3A Step-Down Adjustable Switching Regulator)

Overview

The LM2576T-ADJ is a highly efficient step-down (buck) switching regulator capable of delivering up to 3A of continuous current to the load. This adjustable version allows you to set the output voltage anywhere from 1.23V to 37V using two external resistors, making it an incredibly versatile power solution for a wide range of projects. With its high efficiency (up to 88%), the LM2576T-ADJ generates less heat than linear regulators, eliminating the need for bulky heatsinks in many applications. Its simple architecture requires only a few external components, making it a favorite among hobbyists and professionals alike.

Key Features

• Adjustable Output Voltage: Set from 1.23V to 37V with two external resistors.
• High Output Current: Delivers up to 3A continuous load current.
• High Efficiency: Up to 88%, reducing power dissipation and heat.
• Wide Input Voltage Range: 4.75V to 40V, suitable for various power sources.
• Built-in Protection: Includes thermal shutdown and current limit for reliable operation.
• Low Standby Current: Typically 80µA in standby mode, ideal for battery-powered devices.
• Simple External Circuit: Requires only a few external components (inductor, diode, capacitors, resistors).
• Robust Package: Available in TO-220 package, easy to mount and solder.

Technical Specifications

• Type: Step-Down (Buck) Switching Regulator
• Output Current: 3A (max)
• Output Voltage Range: 1.23V to 37V (adjustable)
• Input Voltage Range: 4.75V to 40V
• Switching Frequency: 52 kHz (typical)
• Efficiency: Up to 88%
• Line Regulation: 0.1% (typical)
• Load Regulation: 0.1% (typical)
• Standby Current: 80µA (typical)
• Operating Temperature: -40°C to +125°C
• Package: TO-220-5
• RoHS Compliant: Yes

Applications & Use Cases

• Power Supply Projects: Build custom adjustable power supplies for your workbench.
• Battery-Powered Devices: Efficiently step down battery voltage to power microcontrollers and sensors.
• Arduino and Raspberry Pi: Provide a stable 5V or 3.3V supply from higher voltage sources like 12V batteries.
• LED Drivers: Drive high-power LEDs with constant current or voltage.
• Robotics: Power motors, servos, and control boards from a single battery pack.
• Automotive Electronics: Convert 12V vehicle power to lower voltages for accessories.
• DIY Electronics: Ideal for any project requiring efficient voltage conversion.

What's Included

• 1x LM2576T-ADJ (LM2576 3A Step-Down Adjustable Switching Regulator)

Compatibility

• Works with any microcontroller or electronic load requiring up to 3A.
• Compatible with common inductors (e.g., 100µH, 3A rating) and Schottky diodes (e.g., 1N5822).
• Use with standard electrolytic capacitors for input and output filtering.
• Suitable for use with Arduino, Raspberry Pi, ESP32, STM32, and other development boards.

MOKWN Recommendation

The LM2576T-ADJ is a must-have for any electronics enthusiast in Egypt. Whether you're a student working on a university project, a hobbyist building your own bench power supply, or an engineer prototyping a new product, this regulator offers the perfect balance of performance, simplicity, and cost-effectiveness. Its adjustable output makes it incredibly flexible, and its high efficiency ensures your projects run cool and reliable. At MOKWN, we recommend stocking up on a few of these regulators for your future projects. Order today and enjoy fast delivery across Egypt!