Micropower DC/DC Converter Flash Memory VPP Generator Adjustable and Fixed 5V/ 12V The part **LT1109ACS8-12** is a **switching regulator** manufactured by **Linear Technology (now part of Analog Devices)**.  

### **Specifications:**  
- **Manufacturer:** Linear Technology (Analog Devices)  
- **Type:** Switching Regulator (DC-DC Converter)  
- **Package:** **SOIC-8**  
- **Output Voltage:** **12V (Fixed)**  
- **Input Voltage Range:** **4V to 30V**  
- **Output Current:** **Up to 1A**  
- **Switching Frequency:** **100kHz**  
- **Efficiency:** **Up to 80%**  
- **Operating Temperature Range:** **0°C to 70°C**  

### **Features:**  
- **Step-Up (Boost) DC-DC Converter**  
- **Low Quiescent Current (1.3mA typical)**  
- **Internal Power Switch (1A, 40V)**  
- **Short-Circuit Protection**  
- **Thermal Shutdown Protection**  
- **Adjustable Output Voltage (with external resistor divider, but fixed 12V in this variant)**  

This regulator is commonly used in **battery-powered systems, industrial controls, and automotive applications** where a stable 12V output is required from a lower input voltage.

Micropower DC/DC Converter Flash Memory VPP Generator Adjustable and Fixed 5V/ 12V