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LM2673S-ADJ/NOPB from NSC,National Semiconductor

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LM2673S-ADJ/NOPB

Manufacturer: NSC

3A Step-Down Voltage Regulator with Adjustable Current Limit 7-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2673S-ADJ/NOPB,LM2673SADJNOPB NSC 32 In Stock

Description and Introduction

3A Step-Down Voltage Regulator with Adjustable Current Limit 7-DDPAK/TO-263 -40 to 125 The LM2673S-ADJ/NOPB is a switching voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Output Voltage Range:** Adjustable from 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 (D2PAK)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2673S-ADJ/NOPB is a step-down (buck) switching regulator designed for high efficiency and ease of use. It integrates a power MOSFET switch and requires minimal external components. The adjustable output version allows for flexibility in setting the desired output voltage using an external resistor divider.  

### **Features:**  
- Simple and easy-to-design switching regulator  
- Adjustable output voltage  
- High efficiency (up to 92%)  
- Wide input voltage range (8V to 40V)  
- Internal soft-start reduces inrush current  
- Thermal shutdown and current limit protection  
- Low standby current in shutdown mode  
- Available in a surface-mount D2PAK package  

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

Application Scenarios & Design Considerations

3A Step-Down Voltage Regulator with Adjustable Current Limit 7-DDPAK/TO-263 -40 to 125

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