Description
The LM2576HVS-12 is a high-performance, fixed-output (12V) step-down (buck) switching regulator housed in a surface-mount TO-263-5 package. Designed to drive up to a 3A load with excellent line and load regulation, this device serves as a highly efficient replacement for traditional three-terminal linear regulators. Its integration of internal frequency compensation and a fixed-frequency oscillator minimizes the external component count, greatly simplifying the design of high-efficiency switch-mode power supplies.
This regulator is engineered to significantly reduce the need for bulky heat sinks, streamlining the thermal design of your PCB. It is compatible with readily available, standard off-the-shelf inductors, ensuring ease of manufacturing and sourcing. With robust safety features, including cycle-by-cycle current limiting and thermal shutdown, the LM2576HVS-12 provides a reliable power management solution for industrial, consumer, and embedded electronic systems.
Key Features
- High Efficiency: Superior performance compared to linear regulators, resulting in lower power dissipation and reduced thermal requirements.
- Simplified PCB Design: Requires only four external components for operation, saving valuable board space.
- Robust Protection: Features integrated thermal shutdown and current limit protection for system-level safety.
- Low-Power Standby: Includes TTL-compatible shutdown capability to minimize power consumption in idle states.
- Versatile SMD Package: Housed in a TO-263-5 surface-mount package, ideal for high-density, automated PCB assembly.
Applications
- Power Management: Efficient step-down conversion for diverse electronic hardware.
- Switch-Mode Power Supplies (SMPS): A foundational building block for reliable 12V power rails.
- Industrial & Automotive: Robust enough to handle wide-input voltage environments.
- Embedded Systems: Provides stable, high-current power for microcontrollers, sensors, and peripheral modules.
Package Includes
- 1 x LM2576HVS-12 (TO-263-5) 12V Step-Down Switching Regulator
Technical Specifications
| Parameter | Specification |
|---|---|
| Device | LM2576HVS-12 |
| Output Voltage | 12V (Fixed) |
| Max Output Current | 3A |
| Input Voltage | 4V – 60V |
| Switching Frequency | 58kHz |
| Package Type | TO-263-5 (SMD/SMT) |
| Operating Temp | -40°C to 125°C |
| Dimensions | 9.89 x 10.28 x 4.22 mm |
| Shipping Weight | 0.003 kg |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters, please refer to the official device datasheet.
