5V-0.5A VERY LOW DROP REGULATOR WITH RESET The part L4947H is a low-dropout voltage regulator manufactured by STMicroelectronics.  

### **Specifications:**  
- **Output Voltage:** 5V (fixed)  
- **Output Current:** Up to 250mA  
- **Dropout Voltage:** Typically 0.4V at 250mA  
- **Input Voltage Range:** Up to 28V  
- **Low Quiescent Current:** Typically 50µA  
- **Low Standby Current:** Typically 0.1µA  
- **Thermal Shutdown Protection:** Yes  
- **Short-Circuit Protection:** Yes  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220  

### **Descriptions and Features:**  
- Designed for automotive and industrial applications.  
- Provides stable 5V output with low power consumption.  
- Includes thermal shutdown and current limiting for protection.  
- Suitable for battery-powered devices due to low dropout voltage.  
- Compatible with ceramic capacitors for stability.  

This information is based on the manufacturer's datasheet.

5V-0.5A VERY LOW DROP REGULATOR WITH RESET