IC Phoenix logo

Home ›  L  › L29 > LM2676SDX-5.0

LM2676SDX-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.

LM2676SDX-5.0

Manufacturer: NS

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2676SDX-5.0,LM2676SDX50 NS 1933 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator The LM2676SDX-5.0 is a step-down voltage regulator manufactured by National Semiconductor (NS). Below are the factual specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** 3A  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Package:** 8-Pin SOIC (SD)  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Regulation Type:** Switching Regulator  

### **Descriptions:**  
The LM2676SDX-5.0 is a monolithic integrated circuit that provides all the 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:** Requires only 5 external components.  
- **High Efficiency:** Up to 92% efficiency.  
- **Internal Soft-Start:** Reduces inrush current.  
- **Wide Input Voltage Range:** 8V to 40V.  
- **Fixed Output Voltage:** 5.0V (±2% tolerance).  
- **Thermal Shutdown and Current Limit Protection.**  
- **Low Power Standby Mode:** IQ typically 50 µA when shut down.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

Alternative Part Number

  • TPS5430DDA --: 3A step-down converter in the same class as the LM2676, with wide input range and integrated switch; a common drop-in style replacement for 5V rail designs.
  • LT1376CS8 --: 1.5A high-efficiency buck regulator with comparable topology and pin-compatible footprint options, suitable for similar 5V output applications.
  • MC34063ADR2G --: Widely available general-purpose DC-DC converter IC that can be configured as a step-down regulator for 5V output, offering a low-cost fallback option.

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