Micropower 150 mA Low-Noise Low-Dropout Regulator in SOT-23 and micro SMD packages for Applications with Output Voltages [Less_Than_Or_Equal] ... The LP2985AIM5X-1.8 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (now part of Texas Instruments).  

### **Specifications:**  
- **Output Voltage:** 1.8V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 300mV (typical at 150mA load)  
- **Input Voltage Range:** 2.5V to 16V  
- **Low Quiescent Current:** 75µA (typical)  
- **Package:** SOT-23-5  
- **Operating Temperature Range:** -40°C to +125°C  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Features Reverse Battery Protection**  

### **Descriptions & Features:**  
- Designed for battery-powered applications requiring stable voltage regulation.  
- Includes thermal shutdown and current limit protection.  
- Stable with low-ESR ceramic capacitors (≥1µF).  
- Low noise and high PSRR (Power Supply Rejection Ratio).  
- Suitable for portable electronics, instrumentation, and embedded systems.  

This regulator is optimized for efficiency and reliability in space-constrained designs.