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LM2670SD-5.0 from NS,National Semiconductor

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LM2670SD-5.0

Manufacturer: NS

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync

Partnumber Manufacturer Quantity Availability
LM2670SD-5.0,LM2670SD50 NS 173 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync The LM2670SD-5.0 is a step-down voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 260kHz (typical)  
- **Efficiency:** Up to 90%  
- **Package:** SOIC-8 (Surface Mount)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2670SD-5.0 is a monolithic integrated circuit designed for step-down (buck) switching voltage regulation. It provides a fixed 5.0V output with high efficiency and minimal external components.  

### **Features:**  
- Simple and easy-to-use design  
- Requires only 5 external components  
- Internal soft-start for controlled inrush current  
- Low standby current (50µA typical in shutdown mode)  
- Adjustable output version available (LM2670-ADJ)  
- High efficiency reduces heat dissipation  

This regulator is suitable for applications requiring a stable 5V supply from higher input voltages, such as industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync

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