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LM2678S-12 from NSC,National Semiconductor

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LM2678S-12

Manufacturer: NSC

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2678S-12,LM2678S12 NSC 205 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator The LM2678S-12 is a step-down voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** Fixed 12V  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2678S-12 is a monolithic high-efficiency switching regulator designed for step-down (buck) applications. It integrates a power switch, oscillator, control circuitry, and protection features into a single package.  

### **Features:**  
- Simple and easy-to-use design  
- Requires minimal external components  
- Internal soft-start for controlled inrush current  
- Adjustable version available (LM2678)  
- Low standby current in shutdown mode  
- High efficiency reduces heat dissipation  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application circuits, refer to the official documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator

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