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LM2576S-12 from NS,National Semiconductor

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LM2576S-12

Manufacturer: NS

12V dual 3.0A step down switching voltage regulator

Partnumber Manufacturer Quantity Availability
LM2576S-12,LM2576S12 NS 4500 In Stock

Description and Introduction

12V dual 3.0A step down switching voltage regulator The LM2576S-12 is a step-down switching regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Output Voltage:** Fixed 12V  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  

### **Descriptions:**  
The LM2576S-12 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed to drive a 3A load with excellent line and load regulation. The device requires minimal external components and simplifies power supply design.  

### **Features:**  
- **Fixed Output Voltage (12V)**  
- **3A Output Current Capability**  
- **Wide Input Voltage Range (4.5V to 40V)**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown and Current Limit Protection**  
- **Low Power Standby Mode (50µA typical)**  
- **Simple and Easy-to-Use Design**  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

12V dual 3.0A step down switching voltage regulator

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