3A LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS **Manufacturer:** STMicroelectronics (ST)  
**Part Number:** LD1085D2T33R  
### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** Up to 3A  
- **Input Voltage Range:** 4.75V to 15V  
- **Dropout Voltage:** 1.3V (typical at 3A)  
- **Line Regulation:** 0.015% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** D²PAK (TO-263)  
### **Descriptions:**  
The LD1085D2T33R is a low-dropout (LDO) voltage regulator from STMicroelectronics, designed to provide a fixed 3.3V output with high current capability (up to 3A). It features low dropout voltage, high accuracy, and thermal protection.  
### **Features:**  
- **Fixed Output Voltage:** 3.3V  
- **High Current Capability:** Up to 3A  
- **Low Dropout Voltage:** 1.3V (typical at full load)  
- **Thermal Overload Protection**  
- **Short-Circuit Protection**  
- **Adjustable Version Available (LD1085V)**  
- **Pb-Free and RoHS Compliant**  
This regulator is commonly used in power supply applications requiring stable voltage with high current output.