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LM2676SD-3.3 from NS,National Semiconductor

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LM2676SD-3.3

Manufacturer: NS

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2676SD-3.3,LM2676SD33 NS 584 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator The LM2676SD-3.3 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 3A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin SOIC (SD)  
- **Regulation Type:** Switching Regulator (Buck Converter)  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2676SD-3.3 is a monolithic integrated circuit that provides all necessary functions for a step-down (buck) switching regulator. It is designed for high-efficiency power conversion with minimal external components.  

### **Features:**  
- Simple and easy-to-use design  
- Requires only 5 external components  
- High efficiency (up to 95%)  
- Internal soft-start reduces inrush current  
- Adjustable output version available (LM2676-ADJ)  
- Low standby current in shutdown mode  
- Thermal shutdown and current limit protection  

This regulator is suitable for applications requiring a stable 3.3V supply from a higher input voltage, such as industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

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