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LM2673S-5.0 from NS,National Semiconductor

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LM2673S-5.0

Manufacturer: NS

SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit

Partnumber Manufacturer Quantity Availability
LM2673S-5.0,LM2673S50 NS 16696 In Stock

Description and Introduction

SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit The LM2673S-5.0 is a switching voltage regulator manufactured by National Semiconductor (NS). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** Fixed 5.0V  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 92%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  

### **Descriptions:**  
- The LM2673S-5.0 is a step-down (buck) switching regulator that provides a fixed 5.0V output.  
- It integrates a high-efficiency DC-DC converter with a power switch, oscillator, control circuitry, and protection features.  
- Designed for simplicity, requiring minimal external components.  

### **Features:**  
- **Simple and Easy to Use:** Requires only 6 external components.  
- **High Efficiency:** Up to 92% efficiency, reducing heat dissipation.  
- **Internal Soft-Start:** Limits inrush current during startup.  
- **Thermal Shutdown & Current Limiting:** Protects against overload and overheating.  
- **Wide Input Voltage Range:** Suitable for industrial and automotive applications.  
- **Low Power Standby Mode:** Enhances efficiency at light loads.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit

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