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LM2675N-5.0 from NS,National Semiconductor

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LM2675N-5.0

Manufacturer: NS

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2675N-5.0,LM2675N50 NS 269 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator The LM2675N-5.0 is a step-down voltage regulator manufactured by National Semiconductor (NS). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 90%  
- **Dropout Voltage:** ~1.3V (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  

### **Descriptions:**  
- The LM2675N-5.0 is a monolithic integrated circuit designed for step-down (buck) switching regulator applications.  
- It provides a fixed 5.0V output with high efficiency and requires minimal external components.  
- The device includes an internal NPN switch, frequency compensation, and a fixed-frequency oscillator.  

### **Features:**  
- **Simple and Easy to Use:** Requires only 5 external components.  
- **High Efficiency:** Reduces power dissipation with synchronous rectification.  
- **Internal Soft-Start:** Limits inrush current during startup.  
- **Thermal Shutdown and Current Limit Protection:** Ensures safe operation under fault conditions.  
- **Low Standby Current:** Typically 50µA in shutdown mode.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator

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