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LM2576

3.0A Step Down Switching voltage Regulator Adjustable & Fix Output

Partnumber Manufacturer Quantity Availability
LM2576 10000 In Stock

Description and Introduction

3.0A Step Down Switching voltage Regulator Adjustable & Fix Output The LM2576 is a step-down (buck) switching voltage regulator manufactured by Texas Instruments (formerly National Semiconductor).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 40V  
- **Output Voltage Options:**  
  - Fixed versions: 3.3V, 5V, 12V, 15V, ADJ (adjustable)  
  - Adjustable version range: 1.23V to 37V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 52 kHz  
- **Efficiency:** Up to 88% (depending on input/output conditions)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Types:** TO-220, TO-263 (D2PAK)  

### **Descriptions:**  
- The LM2576 is a monolithic integrated circuit that simplifies the design of step-down switching regulators.  
- It requires minimal external components and includes features like thermal shutdown and current limiting.  
- Suitable for applications requiring efficient power conversion with high load currents.  

### **Features:**  
- **Simple Design:** Requires only 4 external components.  
- **Internal Frequency Compensation:** Reduces external component count.  
- **Fixed and Adjustable Output Options:** Provides flexibility for different applications.  
- **Thermal Shutdown & Current Limiting:** Protects the device from overheating and overcurrent conditions.  
- **Low Power Standby Mode:** Reduces power consumption when the regulator is disabled.  

This information is based on the manufacturer's datasheet for the LM2576 series.

Application Scenarios & Design Considerations

3.0A Step Down Switching voltage Regulator Adjustable & Fix Output

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