IC Phoenix logo

Home ›  L  › L29 > LM2679T-5.0

LM2679T-5.0 from NS,National Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

LM2679T-5.0

Manufacturer: NS

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit

Partnumber Manufacturer Quantity Availability
LM2679T-5.0,LM2679T50 NS 23 In Stock

Description and Introduction

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit The LM2679T-5.0 is a switching voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  

### **Descriptions:**
- The LM2679T-5.0 is a step-down (buck) switching regulator that provides a fixed 5.0V output.  
- It integrates a high-efficiency DC-DC converter with a power MOSFET switch, reducing external component count.  
- Designed for simplicity, it requires minimal external components for operation.  

### **Features:**
- **Simple and Easy to Use:** Requires only 6 external components.  
- **High Efficiency:** Up to 92% efficiency, reducing power dissipation.  
- **Internal Soft-Start:** Limits inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Wide Input Voltage Range:** Suitable for various applications.  
- **Fixed Output Voltage:** Eliminates the need for external feedback resistors.  

This regulator is commonly used in power supply applications, automotive systems, and industrial equipment.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit
Partnumber Manufacturer Quantity Availability
LM2679T-5.0,LM2679T50 国半 63 In Stock

Description and Introduction

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit The LM2679T-5.0 is a switching voltage regulator manufactured by National Semiconductor (国半). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Output Voltage:** Fixed 5.0V  
- **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 Type:** TO-220 (5-pin)  
- **Regulation Type:** Step-down (Buck) converter  

### **Descriptions:**  
The LM2679T-5.0 is a monolithic integrated circuit designed for step-down (buck) voltage regulation. It provides a fixed 5.0V output with high efficiency and requires minimal external components. The device includes an internal N-channel MOSFET switch, a fixed-frequency oscillator, thermal shutdown, and current limiting for protection.  

### **Features:**  
- **Simple and Easy-to-Use:** Requires only 6 external components.  
- **High Efficiency:** Up to 92% efficiency with minimal power loss.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limit Protection:** Safeguards against excessive load currents.  
- **Wide Input Voltage Range:** Suitable for various power supply applications.  
- **Fixed Frequency Operation:** 260 kHz switching frequency reduces noise and simplifies filtering.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips