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LM2674MX-ADJ from NS,National Semiconductor

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LM2674MX-ADJ

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM2674MX-ADJ,LM2674MXADJ NS 5000 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator The LM2674MX-ADJ is a step-down switching voltage regulator manufactured by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 8V to 40V  
- **Adjustable Output Voltage:** 1.21V to 37V (set by external resistors)  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 260 kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8  

### **Descriptions:**
- The LM2674MX-ADJ is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator.  
- It is designed for simplicity and efficiency, requiring minimal external components.  
- The adjustable output version allows flexibility in setting the desired output voltage.  

### **Features:**
- **Simple and Easy to Design:** Requires only 5 external components.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Current Limiting:** Provides overload protection.  
- **Low Power Standby Mode:** Enhances efficiency in light-load conditions.  
- **High Efficiency:** Minimizes power dissipation.  

This regulator is commonly used in power supply applications requiring efficient step-down conversion.

Application Scenarios & Design Considerations

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

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