Series regulator (Three-terminal voltage regulator) The TA4809BF is a semiconductor device manufactured by Toshiba. Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
- **Toshiba**  

### **Specifications:**  
- **Type:** Bipolar Linear IC  
- **Function:** Voltage Regulator  
- **Package:** TO-220F (isolated type)  
- **Output Voltage:** Adjustable  
- **Maximum Output Current:** 1.5A  
- **Input Voltage Range:** Up to 35V  
- **Operating Temperature Range:** -20°C to +85°C  

### **Descriptions:**  
- The TA4809BF is a positive voltage regulator IC designed for stable power supply applications.  
- It features overcurrent protection and thermal shutdown for enhanced reliability.  
- Suitable for use in consumer electronics, industrial equipment, and automotive applications.  

### **Features:**  
- **Adjustable Output Voltage**  
- **High Ripple Rejection**  
- **Low Dropout Voltage**  
- **Built-in Overcurrent Protection**  
- **Thermal Shutdown Protection**  
- **Isolated Package (TO-220F)**  

For further technical details, refer to Toshiba's official datasheet.