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LM2676SX-ADJ NOPB from NSC,National Semiconductor

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LM2676SX-ADJ NOPB

Manufacturer: NSC

SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2676SX-ADJ NOPB,LM2676SXADJNOPB NSC 14500 In Stock

Description and Introduction

SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125 The LM2676SX-ADJ/NOPB is a switching voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Adjustable Output Voltage:** 1.21V to 37V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 260 kHz (fixed)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-7 (DDPAK/TO-263)  
- **Regulation Type:** Buck (Step-Down)  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2676SX-ADJ/NOPB is a monolithic high-efficiency switching regulator designed for step-down (buck) voltage conversion. It integrates a power switch and control circuitry, requiring minimal external components. The adjustable version allows users to set the output voltage via an external resistor divider.  

### **Features:**  
- **Simple and Efficient Design:** Requires only 5 external components.  
- **High Efficiency:** Reduces heat dissipation.  
- **Wide Input Voltage Range:** Suitable for various applications.  
- **Adjustable Output:** Flexibility in setting desired voltage.  
- **Built-in Protection:** Thermal shutdown and current limit for reliability.  
- **Low Power Standby Mode:** Improves efficiency at light loads.  

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

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 8V to 40V, 3A Low Component Count Step-Down Regulator 7-DDPAK/TO-263 -40 to 125

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