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LM2673SX-ADJ from NS,National Semiconductor

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LM2673SX-ADJ

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM2673SX-ADJ,LM2673SXADJ NS 1995 In Stock

Description and Introduction

SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit The LM2673SX-ADJ is a switching voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage:** Adjustable (1.23V to 37V)  
- **Output Current:** 3A  
- **Input Voltage Range:** 8V to 40V  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Package:** TO-263 (D2PAK)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2673SX-ADJ is a step-down (buck) switching regulator designed for high-efficiency power conversion. It integrates a high-current switch, a fixed-frequency oscillator, and adjustable output voltage control.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Simple External Components** (requires only 5 external components)  
- **Low Power Standby Mode** (shutdown current < 50 µA)  
- **Internal Soft-Start** for controlled startup  
- **Wide Input Voltage Range** (8V to 40V)  
- **High Efficiency** (up to 92%)  
- **Thermal Shutdown Protection**  

This regulator is suitable for applications such as power supplies for industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

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

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