1A Low Dropout Regulator for 5V to 3.3V Conversion 3-DDPAK/TO-263 -40 to 125 The LM3940ISX-3.3NOPB is a fixed-output voltage regulator manufactured by N/A.  

### Specifications:  
- **Output Voltage:** 3.3V  
- **Output Current:** 1A  
- **Input Voltage Range:** Up to 7.5V  
- **Dropout Voltage:** 0.5V (typical)  
- **Line Regulation:** 0.05% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-3 (D2PAK)  

### Descriptions and Features:  
- Designed for low dropout voltage applications.  
- Provides stable 3.3V output with high accuracy.  
- Includes thermal shutdown and current limit protection.  
- Suitable for battery-powered and portable devices.  
- Low quiescent current for improved efficiency.  
- Surface-mount package for compact PCB designs.  

This information is based solely on the provided knowledge base.

1A Low Dropout Regulator for 5V to 3.3V Conversion 3-DDPAK/TO-263 -40 to 125