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LM340MPX-5.0 from NS,National Semiconductor

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LM340MPX-5.0

Manufacturer: NS, NSC

Series 3-Terminal Positive Regulators

Partnumber Manufacturer Quantity Availability
LM340MPX-5.0,LM340MPX50 NS, NSC 1884 In Stock

Description and Introduction

Series 3-Terminal Positive Regulators The LM340MPX-5.0 is a 5.0V fixed-output positive voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 5.0V ±2% (typical)  
- **Output Current:** Up to 1.5A  
- **Input Voltage Range:** 7.5V to 35V  
- **Dropout Voltage:** 2V (typical at full load)  
- **Line Regulation:** 0.01% (typical)  
- **Load Regulation:** 0.3% (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package:** TO-220 (MPX)  

### **Descriptions and Features:**  
- **Three-Terminal Regulator:** Input, Output, and Ground pins.  
- **Thermal Overload Protection:** Shuts down if temperature exceeds safe limits.  
- **Short-Circuit Protection:** Limits current in case of a short circuit.  
- **Internal Current Limiting:** Prevents damage from excessive current.  
- **Stable with Low-ESR Capacitors:** Requires only a small output capacitor for stability.  
- **Wide Input Voltage Range:** Suitable for various power supply applications.  
- **Applications:** Power supplies, industrial controls, automotive systems, and consumer electronics.  

This regulator is designed for easy integration into circuits requiring a stable 5V supply.

Application Scenarios & Design Considerations

Series 3-Terminal Positive Regulators

Alternative Part Number

  • MC7805CD2TR4G --: 5V fixed linear regulator in D2PAK with equivalent current rating and pinout, widely available and directly drop-in compatible.
  • L7805CD2T-TR --: Standard 5V positive voltage regulator in D2PAK, same package and function, good second-source option.
  • UA7805CKCS --: 5V fixed regulator in TO-220 package with similar electrical characteristics; requires package adaptation but is a reliable alternative.
  • UA7805CKC --: 5V fixed linear regulator in a comparable power package with well-documented specifications, suitable as an alternative when the original is unavailable.

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