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LM2940CT-5.0/NOPB from NSC,National Semiconductor

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LM2940CT-5.0/NOPB

Manufacturer: NSC

1A Low Dropout Regulator 3-TO-220 0 to 125

Partnumber Manufacturer Quantity Availability
LM2940CT-5.0/NOPB,LM2940CT50NOPB NSC 50000 In Stock

Description and Introduction

1A Low Dropout Regulator 3-TO-220 0 to 125 The LM2940CT-5.0/NOPB is a low-dropout voltage regulator manufactured by National Semiconductor (NSC). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **Output Current:** 1A (maximum)  
- **Dropout Voltage:** 0.5V (typical at full load)  
- **Input Voltage Range:** Up to 26V  
- **Line Regulation:** 0.3% (typical)  
- **Load Regulation:** 0.4% (typical)  
- **Quiescent Current:** 10mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (through-hole)  

### **Descriptions:**
- The LM2940CT-5.0/NOPB is a fixed 5V low-dropout (LDO) regulator designed for applications requiring stable power with minimal input-output differential.  
- It includes internal current limiting, thermal shutdown, and reverse-battery protection.  
- Suitable for battery-powered systems, automotive, and industrial applications.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **Internal Short-Circuit Protection:** Safeguards against excessive current.  
- **Thermal Shutdown:** Prevents damage due to overheating.  
- **Reverse Battery Protection:** Protects the regulator from reverse polarity.  
- **Low Quiescent Current:** Enhances efficiency in battery-operated devices.  
- **Stable with Low-ESR Capacitors:** Works reliably with ceramic or tantalum output capacitors.  

This regulator is commonly used in power supplies, microcontrollers, and other electronic systems requiring a stable 5V output.

Application Scenarios & Design Considerations

1A Low Dropout Regulator 3-TO-220 0 to 125

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