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LM317AT from NS,National Semiconductor

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LM317AT

Manufacturer: NS

3-Terminal Adjustable Regulator

Partnumber Manufacturer Quantity Availability
LM317AT NS 150 In Stock

Description and Introduction

3-Terminal Adjustable Regulator The LM317AT is a linear voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Output Voltage Range:** Adjustable from **1.2V to 37V**  
- **Output Current:** **1.5A** (maximum)  
- **Input-Output Differential Voltage (Dropout):** **3V** (typical)  
- **Line Regulation:** **0.01% / V** (typical)  
- **Load Regulation:** **0.1%** (typical)  
- **Operating Temperature Range:** **0°C to +125°C**  
- **Package Type:** **TO-220**  

### **Descriptions:**  
- The LM317AT is a **positive voltage regulator** designed to provide a stable, adjustable output voltage.  
- It includes **internal current limiting, thermal shutdown, and safe operating area (SOA) protection**, making it robust against overloads.  
- The device requires only **two external resistors** to set the output voltage.  

### **Features:**  
- **Adjustable Output Voltage** (1.2V to 37V)  
- **1.5A Output Current Capability**  
- **Thermal Overload Protection**  
- **Short-Circuit Protection**  
- **Improved Line and Load Regulation** compared to fixed regulators  
- **TO-220 Package** for easy mounting  

This information is based on the manufacturer's datasheet for the LM317AT by National Semiconductor (NS).

Application Scenarios & Design Considerations

3-Terminal Adjustable Regulator

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