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LM2676SX-5.0/NOPB from NSC,National Semiconductor

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LM2676SX-5.0/NOPB

Manufacturer: NSC

SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2676SX-5.0/NOPB,LM2676SX50NOPB NSC 500 In Stock

Description and Introduction

SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125 The LM2676SX-5.0/NOPB is a step-down voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-7 (D2PAK)  
- **Regulation Type:** Switching Regulator (Buck Converter)  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2676SX-5.0/NOPB is a monolithic integrated circuit providing all active functions for a step-down (buck) switching regulator capable of driving up to 3A loads. It features high efficiency, requiring minimal external components.  

### **Features:**  
- Simple and easy-to-design switching regulator  
- Requires only 5 external components  
- Internal soft-start for reduced inrush current  
- Low power standby mode  
- Adjustable output voltage (for adjustable versions)  
- Fixed 5.0V output (in this variant)  
- Thermal shutdown and current limit protection  

This regulator is suitable for applications such as power supplies for industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125

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