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LM2677T-5.0 from NS,National Semiconductor

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LM2677T-5.0

Manufacturer: NS

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync

Partnumber Manufacturer Quantity Availability
LM2677T-5.0,LM2677T50 NS 2899 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync The LM2677T-5.0 is a step-down voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual data:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 92%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  

### **Descriptions:**
- The LM2677T-5.0 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator.  
- It is designed for high-efficiency power conversion with minimal external components.  
- The regulator includes a fixed-frequency oscillator, thermal shutdown, current limiting, and an adjustable soft-start feature.  

### **Features:**
- **Simple and Easy to Use:** Requires only 6 external components.  
- **High Efficiency:** Uses a low ON-resistance DMOS power switch.  
- **Internal Soft-Start:** Reduces inrush current.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Current Limiting:** Prevents damage from excessive load current.  
- **Wide Input Voltage Range:** Suitable for various applications.  

This information is based solely on the manufacturer's datasheet for the LM2677T-5.0.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync

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