VERY LOW DROP VOLTAGE REGULATOR WITH INHIBIT FUNCTION The LM2931D-R is a low-dropout voltage regulator manufactured by STMicroelectronics.  

### **Specifications:**  
- **Input Voltage Range:** Up to 26V  
- **Output Voltage Options:** 5V (fixed)  
- **Output Current:** Up to 100mA  
- **Dropout Voltage:** Typically 0.4V at full load  
- **Low Quiescent Current:** 1mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SO-8  
- **Protection Features:** Reverse battery protection, short-circuit protection, thermal shutdown  

### **Descriptions:**  
The LM2931D-R is a low-dropout regulator designed for automotive and industrial applications. It provides stable voltage regulation with minimal power dissipation, making it suitable for battery-powered systems.  

### **Features:**  
- Low dropout voltage  
- Reverse polarity protection  
- Internal current and thermal limiting  
- Stable with low-ESR capacitors  
- Suitable for harsh environments  

This regulator is commonly used in automotive electronics, power supplies, and portable devices requiring reliable voltage regulation.  

(Source: STMicroelectronics datasheet)

VERY LOW DROP VOLTAGE REGULATOR WITH INHIBIT FUNCTION