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LM2673T-ADJ from NSC,National Semiconductor

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LM2673T-ADJ

Manufacturer: NSC

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

Partnumber Manufacturer Quantity Availability
LM2673T-ADJ,LM2673TADJ NSC 1 In Stock

Description and Introduction

SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit The LM2673T-ADJ is a switching voltage regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 8V to 40V  
- **Adjustable Output Voltage Range:** 1.23V to 37V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 260 kHz (fixed)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-220 (5-pin)  
- **Regulation Type:** Buck (Step-Down) Converter  

### **Descriptions:**
- The LM2673T-ADJ is a monolithic integrated circuit designed for step-down (buck) voltage regulation.  
- It provides high efficiency and requires minimal external components.  
- The adjustable output version allows users to set the desired output voltage using external resistors.  
- Includes built-in features such as thermal shutdown, current limiting, and soft-start.  

### **Features:**
- **Simple and Easy to Design:** Requires only a few external components.  
- **High Efficiency:** Up to 92%, reducing heat dissipation.  
- **Wide Input Voltage Range:** Supports 8V to 40V input.  
- **Adjustable Output:** User-configurable via external resistors.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limiting:** Protects against overcurrent conditions.  
- **Fixed Frequency Operation:** 260 kHz switching for predictable noise characteristics.  

This information is strictly 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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