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LM2678S-5.0/NOPB from NS,National Semiconductor

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LM2678S-5.0/NOPB

Manufacturer: NS

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator 7-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2678S-5.0/NOPB,LM2678S50NOPB NS 220 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator 7-DDPAK/TO-263 -40 to 125 The LM2678S-5.0/NOPB 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 5A  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-7 (DDPAK/TO-263)  
- **Protection Features:** Thermal shutdown, current limit  
- **Control Method:** PWM (Pulse Width Modulation)  

### **Descriptions:**  
The LM2678S-5.0/NOPB is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed for high efficiency and ease of use, requiring minimal external components.  

### **Features:**  
- Simple and easy-to-design switching regulator  
- Requires only 5 external components  
- High efficiency (up to 92%)  
- Wide input voltage range (8V to 40V)  
- Fixed 5.0V output  
- 260 kHz fixed-frequency internal oscillator  
- Thermal shutdown and current limit protection  
- Available in a surface-mount TO-263 package  

This regulator is commonly used in power supply applications for industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator 7-DDPAK/TO-263 -40 to 125

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