300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown The LT1521CS8-5#PBF is a low dropout (LDO) voltage regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Output Voltage:** 5V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 300mV (typical at full load)  
- **Input Voltage Range:** 3.8V to 20V  
- **Quiescent Current:** 1.1mA (typical)  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.04%/mA (typical)  
- **Operating Temperature Range:** 0°C to 125°C  
- **Package:** 8-Lead SOIC  

### **Descriptions:**  
The LT1521CS8-5#PBF is a high-performance LDO regulator designed for applications requiring stable and clean power. It features low dropout voltage, low quiescent current, and excellent line and load regulation.  

### **Features:**  
- Low dropout voltage (300mV typical at full load)  
- Low quiescent current (1.1mA typical)  
- Stable with low-ESR output capacitors  
- Thermal shutdown and current limit protection  
- Reverse-battery protection  
- Short-circuit protected  

This regulator is suitable for battery-powered systems, portable devices, and other applications requiring efficient voltage regulation.

300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown