Overview
The LM2576-5.0BT is a step-down (buck) switching voltage regulator produced by Microchip Technology. This IC is designed to provide a fixed 5.0V output voltage with a high level of efficiency, making it ideal for a wide range of power supply applications. The LM2576-5.0BT is part of the LM2576 series, known for its simplicity, reliability, and cost-effectiveness. It is particularly suited for industrial, automotive, and consumer electronics applications where stable and efficient power conversion is required.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 5.0 | V | Fixed |
| Input Voltage Range | 4.75 to 40 | V | |
| Output Current | 3 | A | Max |
| Switching Frequency | 52 | kHz | |
| Efficiency | Up to 88 | % | Typical |
| Operating Temperature Range | -40 to +125 | °C | |
| Package | TO-220-5 | ||
| Protection Features | Overcurrent, Thermal Shutdown |
Key Features
- Fixed 5.0V Output: Provides a stable 5.0V output voltage, suitable for a wide range of applications.
- High Efficiency: Up to 88% efficiency reduces power loss and heat generation.
- Wide Input Voltage Range: Operates with input voltages from 4.75V to 40V, making it versatile for various power sources.
- Integrated Protection: Includes overcurrent and thermal shutdown protection for enhanced reliability.
- Simple Design: Requires minimal external components, simplifying the design and reducing overall cost.
Applications
The LM2576-5.0BT is widely used in various applications, including:
- Industrial Automation: Powering control systems, sensors, and actuators.
- Automotive Electronics: Providing stable power for infotainment systems, lighting, and sensors.
- Consumer Electronics: Used in devices such as routers, set-top boxes, and portable electronics.
- Telecommunications: Powering communication modules and network equipment.
- Power Supplies: Ideal for designing efficient and compact DC-DC converters.
Q & A
1. What is the output voltage of the LM2576-5.0BT?
The LM2576-5.0BT provides a fixed output voltage of 5.0V.
2. What is the maximum input voltage for the LM2576-5.0BT?
The maximum input voltage is 40V.
3. What is the maximum output current of the LM2576-5.0BT?
The maximum output current is 3A.
4. What is the switching frequency of the LM2576-5.0BT?
The switching frequency is 52kHz.
5. Does the LM2576-5.0BT have built-in protection features?
Yes, it includes overcurrent and thermal shutdown protection.
6. What is the typical efficiency of the LM2576-5.0BT?
The typical efficiency is up to 88%.
7. What is the operating temperature range of the LM2576-5.0BT?
The operating temperature range is -40°C to +125°C.
8. What package does the LM2576-5.0BT come in?
It comes in a TO-220-5 package.
9. Can the LM2576-5.0BT be used in automotive applications?
Yes, it is suitable for automotive electronics due to its wide input voltage range and robust design.
10. How many external components are required for the LM2576-5.0BT?
The LM2576-5.0BT requires minimal external components, typically a diode, inductor, and capacitors, simplifying the design.
