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LM2671M3.3 from NS,National Semiconductor

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LM2671M3.3

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM2671M3.3,LM2671M33 NS 15 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features The LM2671M3.3 is a step-down voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 90%  
- **Package:** SOT-223  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2671M3.3 is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. It is designed for simplicity and efficiency, requiring minimal external components.  

### **Features:**  
- Simple and easy-to-use design  
- Requires only 5 external components  
- Low power standby mode (IQ < 50 µA)  
- Internal soft-start for controlled inrush current  
- Adjustable output voltage version available (LM2671M-ADJ)  
- High efficiency for reduced heat dissipation  

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

Application Scenarios & Design Considerations

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

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