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LM2674M-5.0 from NS,National Semiconductor

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LM2674M-5.0

Manufacturer: NS

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2674M-5.0,LM2674M50 NS 2800 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator The LM2674M-5.0 is a step-down voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 90%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** SOIC-8  

### **Descriptions:**  
- A monolithic, high-efficiency switching regulator with an integrated NPN power switch.  
- Designed for step-down (buck) conversion applications.  
- Includes fixed-frequency oscillator, thermal shutdown, and current limiting for protection.  

### **Features:**  
- **Simple Design:** Requires minimal external components.  
- **Low Power Standby Mode:** Typically 50µA shutdown current.  
- **Internal Soft-Start:** Reduces inrush current.  
- **Thermal Shutdown & Current Limiting:** Protects against overloads.  
- **High Efficiency:** Minimizes power dissipation.  

This regulator is commonly used in power supply designs for industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator

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