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LM3940IT-3.3 from NS,National Semiconductor

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LM3940IT-3.3

Manufacturer: NS

IA Low Dropout Regulator for 5V to 3.3V Conversion

Partnumber Manufacturer Quantity Availability
LM3940IT-3.3,LM3940IT33 NS 220 In Stock

Description and Introduction

IA Low Dropout Regulator for 5V to 3.3V Conversion The LM3940IT-3.3 is a fixed-output voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 3.3V  
- **Output Current:** 1A  
- **Input Voltage Range:** Up to 20V  
- **Dropout Voltage:** 0.5V (typical) at 1A  
- **Line Regulation:** 0.05% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220  

### **Descriptions:**  
The LM3940IT-3.3 is a low-dropout (LDO) voltage regulator designed to provide a stable 3.3V output from a higher input voltage. It is suitable for applications requiring efficient power conversion with minimal power dissipation.  

### **Features:**  
- Low dropout voltage (0.5V typical at 1A)  
- High output current capability (1A)  
- Thermal shutdown protection  
- Short-circuit protection  
- Stable with low-ESR capacitors  
- Reverse-battery protection  

This regulator is commonly used in battery-powered devices, embedded systems, and other applications requiring a regulated 3.3V supply.

Application Scenarios & Design Considerations

IA Low Dropout Regulator for 5V to 3.3V Conversion

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