5V-0.5A VERY LOW DROP REGULATOR WITH RESET The part **L4947** is a **5V low-drop voltage regulator** manufactured by **STMicroelectronics (ST)**.  

### **Key Features:**  
- **Output Voltage:** 5V (±2% accuracy)  
- **Output Current:** Up to 250mA  
- **Low Dropout Voltage:** Typically 450mV at 250mA  
- **Low Quiescent Current:** Typically 50µA  
- **Wide Input Voltage Range:** Up to 28V  
- **Thermal Overload Protection**  
- **Short-Circuit Protection**  
- **Reverse Polarity Protection**  
- **SO-8 Package**  

### **Applications:**  
- Automotive systems  
- Industrial controls  
- Battery-powered devices  
- Consumer electronics  

This regulator is designed for stability and efficiency in low-power applications.  

*(Source: STMicroelectronics datasheet for L4947.)*

5V-0.5A VERY LOW DROP REGULATOR WITH RESET