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LM340SX-5.0 from NS,National Semiconductor

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LM340SX-5.0

Manufacturer: NS, NSC

Series 3-Terminal Positive Regulators

Partnumber Manufacturer Quantity Availability
LM340SX-5.0,LM340SX50 NS, NSC 3200 In Stock

Description and Introduction

Series 3-Terminal Positive Regulators The LM340SX-5.0 is a 5.0V fixed-output voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Output Current:** 1.5A  
- **Input Voltage Range:** Up to 35V  
- **Dropout Voltage:** 2V (typical)  
- **Line Regulation:** 0.01%/V (typical)  
- **Load Regulation:** 0.3% (typical)  
- **Operating Junction Temperature Range:** 0°C to +125°C  
- **Package:** TO-263 (SMD)  

### **Descriptions and Features:**  
- The LM340SX-5.0 is a positive voltage regulator designed to provide a stable 5.0V output.  
- It includes internal current limiting, thermal shutdown, and safe-operating-area protection.  
- Suitable for a wide range of applications, including power supplies and voltage regulation in electronic circuits.  
- The TO-263 (D2PAK) package offers efficient thermal performance for surface-mount applications.  
- Requires minimal external components for operation.  

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

Application Scenarios & Design Considerations

Series 3-Terminal Positive Regulators

Alternative Part Number

  • LM7805CT --: Classic 5V fixed linear regulator in TO-220, widely available and functionally equivalent to the LM340 5V regulator.
  • MC7805CTG --: Standard 5V positive linear regulator with similar electrical characteristics and drop-in compatibility in most applications.
  • L7805CV --: Common 5V fixed regulator offering comparable performance and pinout, suitable as a direct replacement.

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