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LM2576HVT-5.0 3A Step-Down Switching Voltage Regulator (High Voltage, Fixed 5V - TO-220 Package)

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What makes this specific HV (High Voltage) variant truly stand out is its massive input tolerance. While standard LM2576 chips max out at a 40-Volt input, the "HV" version can safely handle supply lines all the way up to 60 Volts DC. Factory-calibrated to deliver a fixed 5-Volt output, it completely eliminates the need for external adjustment resistors. Packaged in the rugged, through-hole TO-220 format, it is the perfect solution for pulling safe, clean 5-Volt logic power directly from high-voltage electric vehicle batteries, large solar arrays, or 48-Volt telecom infrastructure.

Key Features & Functional Advantages

  • High Voltage Tolerance: The "HV" designation means this chip can safely accept input voltages up to 60 Volts DC, far exceeding the 40-Volt limit of standard models.

  • True Switching Efficiency: Uses buck-converter technology rather than linear dissipation, allowing you to drop massive voltages without requiring ridiculously oversized aluminum heatsinks.

  • Fixed 5-Volt Output: Factory preset to deliver exactly 5 Volts, simplifying your circuit board layout and reducing your overall component count.

  • High Current Delivery: Comfortably provides up to 3 Amps of continuous output current, capable of driving demanding loads like large LED matrices, relays, and single-board computers.

  • Built-In Hardware Safety: Features an internal thermal shutdown to protect the silicon from overheating and cycle-by-cycle current limiting to survive accidental short circuits.

Perfect For

  • Industrial Automation: Pulling 5-Volt logic power directly from 24-Volt or 48-Volt industrial factory power rails without creating an overheating hazard.

  • E-Bike and Scooter Power: Stepping down high-voltage main drive batteries to safely run standard 5-Volt headlights, USB chargers, or custom microcontroller dashboards.

  • Solar Power Systems: Managing the widely fluctuating, high-voltage outputs from solar panels to provide steady, usable logic power.

  • Telecom Equipment: Interfacing safely with standard 48-Volt telecommunications power infrastructure.

Technical Specifications

  • Device Type: Step-Down (Buck) Switching Regulator (Not a Linear Regulator)

  • Output Type: Fixed 5.0 Volts DC

  • Input Voltage Maximum: Up to 60.0 Volts DC (HV Version)

  • Maximum Output Current: 3.0 Amps

  • Switching Frequency: 52 kilohertz internal oscillator

  • Package Type: 5-Pin TO-220 (Vertical through-hole with metal heatsink tab)

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