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LM2672M-3.3 from NS,National Semiconductor

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LM2672M-3.3

Manufacturer: NS

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features

Partnumber Manufacturer Quantity Availability
LM2672M-3.3,LM2672M33 NS 4043 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features The LM2672M-3.3 is a step-down voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8  

### **Descriptions:**
The LM2672M-3.3 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed to drive a 1A load with excellent line and load regulation. The device includes a fixed-frequency oscillator, a high-efficiency switch, and internal protection features such as thermal shutdown and current limiting.

### **Features:**
- **Simple and Easy to Design:** Requires minimal external components.  
- **High Efficiency:** Up to 92% efficiency reduces heat dissipation.  
- **Internal Soft-Start:** Limits inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage due to overheating.  
- **Current Limiting Protection:** Safeguards against overcurrent conditions.  
- **Wide Input Voltage Range:** Suitable for automotive and industrial applications.  
- **Fixed-Frequency Operation:** 260 kHz switching frequency reduces noise.  

This information is based on the manufacturer's datasheet for the LM2672M-3.3.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features

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