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LM2672M3.3 from NS,National Semiconductor

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LM2672M3.3

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM2672M3.3,LM2672M33 NS 19 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features The LM2672M3.3 is a step-down voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **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:** TO-263 (D2PAK)  
- **Regulator Type:** Buck (Step-Down)  
- **Control Method:** PWM (Pulse Width Modulation)  

### **Descriptions:**  
The LM2672M3.3 is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. It is designed for high efficiency and simplicity, requiring minimal external components. The fixed 3.3V output version eliminates the need for external resistors to set the output voltage.  

### **Features:**  
- **Simple and Easy-to-Use Design** – Requires only 5 external components.  
- **High Efficiency** – Up to 92% efficiency, reducing heat dissipation.  
- **Wide Input Voltage Range** – Operates from 8V to 40V.  
- **Fixed Output Voltage** – 3.3V preset, no feedback resistors needed.  
- **Internal Soft-Start** – Reduces inrush current during startup.  
- **Thermal Shutdown and Current Limit Protection** – Enhances reliability.  
- **Low Power Standby Mode** – Shutdown current typically 50 µA.  

This information is strictly based on the manufacturer's datasheet and does not include any additional recommendations or usage guidance.

Application Scenarios & Design Considerations

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

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