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LM2576SADJ from NS,National Semiconductor

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LM2576SADJ

Manufacturer: NS

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2576SADJ NS 20 In Stock

Description and Introduction

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator The LM2576SADJ is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 40V  
- **Adjustable Output Voltage Range:** 1.23V to 37V  
- **Output Current:** 3A (max)  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  
- **Protection Features:** Thermal shutdown and current limit  

### **Descriptions:**  
The LM2576SADJ is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed for easy implementation in various power supply applications, requiring minimal external components.  

### **Features:**  
- **Simple and Easy to Use** – Requires only 4 external components.  
- **High Efficiency** – Reduces power dissipation compared to linear regulators.  
- **Wide Input Voltage Range** – Suitable for automotive, industrial, and battery-powered applications.  
- **Adjustable Output Voltage** – Set via an external resistor divider.  
- **Internal Frequency Compensation** – Simplifies circuit design.  
- **Thermal Shutdown and Current Limit Protection** – Enhances reliability.  

This regulator is commonly used in power supplies, battery chargers, and DC-DC converter applications.

Application Scenarios & Design Considerations

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator

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