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LM2673SD-5.0/NOPB from NSC,National Semiconductor

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LM2673SD-5.0/NOPB

Manufacturer: NSC

3A Step-Down Voltage Regulator with Adjustable Current Limit 14-VSON -40 to 125

Partnumber Manufacturer Quantity Availability
LM2673SD-5.0/NOPB,LM2673SD50NOPB NSC 150 In Stock

Description and Introduction

3A Step-Down Voltage Regulator with Adjustable Current Limit 14-VSON -40 to 125 The **LM2673SD-5.0/NOPB** is a switching voltage regulator manufactured by **National Semiconductor (NSC)**. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** Fixed **5.0V**  
- **Output Current:** **3A**  
- **Input Voltage Range:** **8V to 40V**  
- **Switching Frequency:** **260 kHz**  
- **Efficiency:** Up to **92%**  
- **Package:** **PowerPAD SOIC-8 (Exposed Pad for Heat Dissipation)**  
- **Operating Temperature Range:** **-40°C to +125°C**  
- **Regulation Type:** **Buck (Step-Down) Converter**  

### **Descriptions:**  
- The **LM2673SD-5.0/NOPB** is a **monolithic step-down switching regulator** with an integrated **3A switch**.  
- It provides a **fixed 5.0V output** with high efficiency, reducing the need for external heat sinks.  
- Designed for **simple and cost-effective power supply solutions**, it includes **thermal shutdown, current limiting, and soft-start** for protection.  

### **Features:**  
- **Simple Design:** Requires minimal external components.  
- **High Efficiency:** Up to **92%**, reducing power loss.  
- **Internal Soft-Start:** Limits inrush current.  
- **Thermal Shutdown & Current Limiting:** Protects against overloads.  
- **PowerPAD Package:** Enhances thermal performance.  
- **Wide Input Voltage Range (8V–40V):** Suitable for various applications.  

This regulator is commonly used in **automotive, industrial, and consumer electronics** applications where **efficient step-down voltage conversion** is required.

Application Scenarios & Design Considerations

3A Step-Down Voltage Regulator with Adjustable Current Limit 14-VSON -40 to 125

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