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LM2576S-5.0

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2576S-5.0,LM2576S50 6 In Stock

Description and Introduction

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator The LM2576S-5.0 is a step-down (buck) switching voltage regulator manufactured by Texas Instruments (formerly National Semiconductor). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** Fixed 5.0V (±4% tolerance).  
- **Output Current:** Up to 3A.  
- **Input Voltage Range:** 4.5V to 40V.  
- **Switching Frequency:** 52 kHz (typical).  
- **Efficiency:** Up to 88% (depending on input/output conditions).  
- **Operating Junction Temperature:** -40°C to +125°C.  
- **Package:** TO-263-5 (D2PAK).  
- **Protection Features:** Thermal shutdown and current limit.  

### **Descriptions:**
- The LM2576S-5.0 is a monolithic integrated circuit designed for step-down voltage regulation.  
- It simplifies power supply design by requiring minimal external components.  
- Suitable for buck converter, flyback, and forward converter applications.  

### **Features:**
- **Fixed Output Voltage:** No external feedback resistors needed.  
- **Wide Input Voltage Range:** Supports 4.5V to 40V.  
- **High Efficiency:** Reduces heat dissipation.  
- **Internal Frequency Compensation:** Simplifies circuit design.  
- **Low Power Standby Mode:** Consumes minimal current in shutdown mode.  
- **Robust Protection:** Includes thermal shutdown and current limiting.  

This information is based solely on the manufacturer's datasheet for the LM2576S-5.0.

Application Scenarios & Design Considerations

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator

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