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LM2679T-12 from 进口国半,National Semiconductor

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LM2679T-12

Manufacturer: 进口国半

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit

Partnumber Manufacturer Quantity Availability
LM2679T-12,LM2679T12 进口国半 6173 In Stock

Description and Introduction

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit The LM2679T-12 is a step-down voltage regulator manufactured by **Texas Instruments (进口国半)**. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** Fixed 12V  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  

### **Descriptions:**  
- The LM2679T-12 is a **buck (step-down) switching regulator** designed for high-efficiency power conversion.  
- It integrates a **high-side N-channel MOSFET** for reduced external component count.  
- Suitable for **battery-powered systems, industrial, and automotive applications**.  

### **Features:**  
- **Fixed 12V output** with ±2% accuracy.  
- **Wide input voltage range** (8V to 40V).  
- **Built-in soft-start** to limit inrush current.  
- **Thermal shutdown and current limit protection**.  
- **Requires minimal external components** (inductor, diode, capacitors).  
- **Low standby current** (50 µA typical in shutdown mode).  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit

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