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LM2676SDX-ADJ from NSC,National Semiconductor

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LM2676SDX-ADJ

Manufacturer: NSC

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2676SDX-ADJ,LM2676SDXADJ NSC 10 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator The LM2676SDX-ADJ is a switching voltage regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Input Voltage Range:** 8V to 40V  
- **Adjustable Output Voltage Range:** 1.21V to 37V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 260 kHz (fixed)  
- **Efficiency:** Up to 92%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** SOIC-8 (Exposed Pad)  
- **Regulation Type:** Buck (Step-Down) Converter  

### **Descriptions:**
The LM2676SDX-ADJ is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. It features high efficiency and is designed to drive a 3A load with minimal external components. The adjustable version allows the output voltage to be set using an external resistor divider.

### **Features:**
- **Simple and Easy-to-Use Design:** Requires minimal external components.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limiting Protection:** Safeguards against excessive load currents.  
- **Low Power Standby Mode:** Enhances efficiency at light loads.  
- **Wide Input Voltage Range:** Suitable for various industrial and automotive applications.  

For detailed application notes and schematics, refer to the official datasheet from National Semiconductor (NSC).

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator

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