Overview
The LM2576HVT-12, produced by Texas Instruments, is a high-efficiency, 3A step-down (buck) switching regulator. Designed for simplicity and ease of use, it is part of the LM2576 series, which is widely recognized for its robust performance in power supply applications. This model is particularly suited for applications requiring a fixed 12V output and is available in a TO-220 package, making it suitable for various industrial and consumer electronics. Its high efficiency and minimal external component requirements make it a competitive choice in the market for power management solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 12 | V | Fixed |
| Output Current | 3 | A | Maximum |
| Input Voltage Range | Up to 60 | V | For HV version |
| Switching Frequency | 52 | kHz | Fixed |
| Efficiency | 75% to 88% | Varies with output voltage | |
| Operating Temperature Range | -40 to +125 | °C | |
| Package | TO-220 | 5-pin | |
| Protection Features | Thermal shutdown, Current limit |
Key Features
- High efficiency replacement for linear regulators.
- Requires only 4 external components, simplifying design.
- Fixed frequency oscillator (52kHz) for predictable performance.
- Thermal shutdown and current limit protection enhance reliability.
- Available in a robust TO-220 package suitable for various environments.
Applications
The LM2576HVT-12 is versatile and can be used in a variety of applications including industrial automation, consumer electronics, and automotive systems. It is particularly effective in powering devices that require a stable 12V supply, such as sensors, actuators, and communication modules. Its high efficiency and compact design also make it suitable for portable and battery-powered devices, where energy conservation is crucial.
Q & A
What is the output voltage of the LM2576HVT-12?
The LM2576HVT-12 provides a fixed output voltage of 12V.
What is the maximum output current it can handle?
It can handle a maximum output current of 3A.
What is the input voltage range for the LM2576HVT-12?
The input voltage can range up to 60V for the HV version.
What is the switching frequency of the LM2576HVT-12?
The switching frequency is fixed at 52kHz.
What are the protection features of the LM2576HVT-12?
It includes thermal shutdown and current limit protection.
What package does the LM2576HVT-12 come in?
It comes in a TO-220 package.
Can the LM2576HVT-12 be used in automotive applications?
Yes, it is suitable for automotive applications where a stable 12V supply is required.
How many external components are needed to operate the LM2576HVT-12?
Only 4 external components are required for operation.
What is the efficiency of the LM2576HVT-12?
Efficiency ranges from 75% to 88%, depending on the output voltage.
Is the LM2576HVT-12 suitable for battery-powered devices?
Yes, its high efficiency makes it ideal for battery-powered devices.
