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LM2940CT-9.0 from NS,National Semiconductor

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LM2940CT-9.0

Manufacturer: NS

1A Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
LM2940CT-9.0,LM2940CT90 NS 1004 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940CT-9.0 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 9.0V (fixed)  
- **Output Current:** Up to 1A  
- **Dropout Voltage:** Typically 0.5V at full load  
- **Input Voltage Range:** Up to 26V  
- **Line Regulation:** 0.04% (typical)  
- **Load Regulation:** 0.3% (typical)  
- **Quiescent Current:** 10mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-220 (3-pin)  

### **Descriptions:**
- The LM2940CT-9.0 is a fixed-output LDO regulator designed to provide a stable 9.0V output with low dropout voltage.  
- It includes internal current limiting, thermal shutdown, and reverse-battery protection.  
- Suitable for battery-powered applications due to its low quiescent current.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient regulation even when input voltage is close to the output.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limiting:** Protects against short circuits.  
- **Reverse Battery Protection:** Guards against incorrect polarity connection.  
- **Stable with Low-ESR Capacitors:** Works reliably with inexpensive capacitors.  

This regulator is commonly used in automotive, industrial, and consumer electronics applications requiring a stable 9V supply.

Application Scenarios & Design Considerations

1A Low Dropout Regulator

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