Description
The LM2576HVS-5 is a high-performance, fixed-output (5V) step-down (buck) switching regulator housed in a surface-mount TO-263-5 package. Engineered to drive up to a 3A load with excellent line and load regulation, this device serves as a highly efficient, space-saving 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 designed to reduce the need for bulky heat sinks, streamlining the thermal layout 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-5 provides a reliable power management solution for modern 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 and logic circuits.
- Switch-Mode Power Supplies (SMPS): A foundational building block for reliable 5V power rails.
- Industrial & Automotive: Robust enough to handle wide-input voltage environments up to 60V.
- Embedded Systems: Provides stable, high-current power for microcontrollers, sensors, and peripheral modules.
Package Includes
- 1 x LM2576HVS-5 (TO-263-5) 5V Step-Down Switching Voltage Regulator
Technical Specifications
| Parameter | Specification |
|---|---|
| Device | LM2576HVS-5 |
| Output Voltage | 5V (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.
