LM2576HVT-ADJ 3A Adjustable Voltage Regulator ⚡

The LM2576HVT-ADJ is a robust, adjustable step-down (buck) switching voltage regulator designed to deliver up to 3A of output current with minimal external components. Housed in a standard 5‑lead TO-220 package, it offers excellent thermal performance and long-term reliability. Ideal for powering Arduino, Raspberry Pi, and other microcontroller systems, as well as a wide range of electronics components and modules.

Key Features 🔥

• Adjustable output voltage from 1.23V to 37V
• 3A output current capability
• High efficiency switching design for reduced heat and improved battery life
• Thermal shutdown and current limit protection for enhanced safety and reliability
• Fixed 52 kHz switching frequency simplifies inductor and capacitor selection
• Standard TO‑220 (5‑lead) package for easy heat sinking and PCB integration

Technical Specifications 📐

• Input Voltage Range: 4.2V to 40V
• Output Voltage Range: 1.23V to 37V (adjustable)
• Output Current: 3A
• Switching Frequency: 52 kHz
• Operating Temperature: -40°C to +125°C
• Package Type: TO-220 (5-lead)

Typical Applications 🔧

The LM2576HVT-ADJ is versatile and well-suited for many DC/DC conversion tasks, including:

• Simple, high-efficiency buck regulators
• On-card switching regulators for embedded systems
• Positive-to-negative converter (inverting buck-boost configuration)
• Power supplies for battery chargers, power amplifiers, and other DC-powered equipment
• Stable rails for Arduino, Raspberry Pi, and other microcontroller modules in robotics, IoT, and prototyping

Design Notes 🛠️

• Requires only a handful of external components (inductor, Schottky diode, input/output capacitors) thanks to the integrated switch and control circuitry.
• Use appropriate heat sinking for the TO‑220 package to maintain thermal headroom at higher loads.
• Observe proper PCB layout practices (short high-current loops, solid ground) to minimize noise and ripple.
• Ensure the input voltage comfortably exceeds the desired output voltage for correct buck operation; configure as inverting buck‑boost for negative outputs as needed.

Whether you are an electronics engineer designing efficient power stages or a hobbyist building reliable power supplies for development boards, the LM2576HVT-ADJ delivers dependable, adjustable DC/DC conversion with the simplicity and performance you need. ⚙️