Micropower Low Dropout Regulators with Shutdown The LT1121HVCS8 is a high voltage, low dropout (LDO) linear regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** Up to 30V  
- **Output Voltage Range:** Adjustable from 3V to 29V  
- **Output Current:** 150mA  
- **Dropout Voltage:** 450mV (typical at full load)  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.04%/mA (typical)  
- **Quiescent Current:** 1.1mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Lead SOIC (CS8)  

### **Descriptions and Features:**  
- **High Voltage Operation:** Supports input voltages up to 30V.  
- **Low Dropout:** Maintains regulation with very low headroom.  
- **Adjustable Output:** Can be set from 3V to 29V using external resistors.  
- **Low Quiescent Current:** Optimized for power-sensitive applications.  
- **Thermal Protection:** Built-in thermal shutdown prevents overheating.  
- **Current Limit Protection:** Safeguards against excessive output current.  
- **Stable with Low-ESR Capacitors:** Works well with ceramic or tantalum capacitors.  

This regulator is suitable for industrial, automotive, and battery-powered applications requiring stable high-voltage regulation.

Micropower Low Dropout Regulators with Shutdown