Overview
The LM2576HVT-12/LF03 is a 3A step-down (buck) switching voltage regulator produced by Texas Instruments. Designed for simplicity and efficiency, this component is part of the SIMPLE SWITCHER® series, which minimizes external component count, making it ideal for power supply designs. The LM2576HVT-12/LF03 features a fixed 12V output, a wide input voltage range, and a high-efficiency switching architecture, making it suitable for a variety of applications in industrial, automotive, and consumer electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4 to 60 | V | |
| Output Voltage | 12 | V | Fixed |
| Output Current | 3 | A | |
| Switching Frequency | 52 | kHz | |
| Efficiency | Up to 90% | % | Typical |
| Operating Temperature | -40 to +125 | °C | |
| Package | TO-220-5 |
Key Features
- Fixed 12V output voltage for simplified design.
- Wide input voltage range (4V to 60V) for versatile applications.
- High efficiency up to 90%, reducing power dissipation.
- Minimal external components required, reducing design complexity and cost.
- Built-in thermal shutdown and current limit protection for enhanced reliability.
Applications
The LM2576HVT-12/LF03 is widely used in various industries due to its robust performance and efficiency. It is commonly employed in:
- Industrial Automation: Powering sensors, actuators, and control systems.
- Automotive Electronics: Providing stable power for infotainment systems, lighting, and onboard computers.
- Consumer Electronics: Used in devices such as routers, modems, and home appliances.
- Telecommunications: Ensuring reliable power for networking equipment and communication devices.
Q & A
1. What is the input voltage range of the LM2576HVT-12/LF03?
The input voltage range is 4V to 60V.
2. What is the output voltage of this component?
The output voltage is fixed at 12V.
3. What is the maximum output current?
The maximum output current is 3A.
4. What is the switching frequency?
The switching frequency is 52kHz.
5. Does this component require external components?
Yes, but the number of external components is minimal, simplifying the design.
6. Is the LM2576HVT-12/LF03 suitable for automotive applications?
Yes, it is suitable for automotive electronics due to its wide input voltage range and robust design.
7. What protection features are included?
It includes thermal shutdown and current limit protection.
8. What is the operating temperature range?
The operating temperature range is -40°C to +125°C.
9. What is the efficiency of this regulator?
The efficiency can reach up to 90% under typical conditions.
10. What package does the LM2576HVT-12/LF03 come in?
It comes in a TO-220-5 package.
