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LM3940IS-3.3 from NS,National Semiconductor

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LM3940IS-3.3

Manufacturer: NS

IA Low Dropout Regulator for 5V to 3.3V Conversion

Partnumber Manufacturer Quantity Availability
LM3940IS-3.3,LM3940IS33 NS 930 In Stock

Description and Introduction

IA Low Dropout Regulator for 5V to 3.3V Conversion The LM3940IS-3.3 is a low-dropout voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 3.3V  
- **Input Voltage Range:** Up to 20V  
- **Dropout Voltage:** 0.5V (typical) at 1A load  
- **Output Current:** 1A  
- **Line Regulation:** 0.05% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Quiescent Current:** 10mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  

### **Descriptions:**  
The LM3940IS-3.3 is a fixed 3.3V regulator designed for applications requiring a stable and efficient power supply. It features low dropout voltage, making it suitable for battery-powered systems.  

### **Features:**  
- Low dropout voltage (0.5V typical at 1A)  
- High output current capability (1A)  
- Thermal shutdown and current limit protection  
- Stable with low-ESR capacitors  
- Suitable for battery-powered applications  
- Available in a surface-mount TO-263 package  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

IA Low Dropout Regulator for 5V to 3.3V Conversion

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