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L7818C-T from ST,ST Microelectronics

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L7818C-T

Manufacturer: ST

POSITIVE VOLTAGE REGULATORS

Partnumber Manufacturer Quantity Availability
L7818C-T,L7818CT ST 210 In Stock

Description and Introduction

POSITIVE VOLTAGE REGULATORS The **L7818C-T** is a positive voltage regulator manufactured by **STMicroelectronics (ST)**.  

### **Specifications:**  
- **Output Voltage:** +18V (fixed)  
- **Output Current:** Up to 1.5A  
- **Input Voltage Range:** Up to 35V (recommended to stay within 20V to 28V for optimal performance)  
- **Dropout Voltage:** Typically 2V (at full load)  
- **Line Regulation:** 0.03% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package:** TO-220 (through-hole)  
- **Protection Features:**  
  - Internal thermal overload protection  
  - Short-circuit protection  
  - Safe operating area (SOA) protection  

### **Descriptions:**  
The **L7818C-T** is a linear voltage regulator designed to provide a stable +18V output from an unregulated DC input. It is part of the **78xx series** of fixed positive voltage regulators and is widely used in power supply applications.  

### **Features:**  
- **Fixed Output Voltage:** Ensures a precise +18V output.  
- **High Current Capability:** Supports up to 1.5A with proper heat sinking.  
- **Thermal Protection:** Shuts down automatically if overheating occurs.  
- **Short-Circuit Protection:** Safeguards the regulator from damage.  
- **Low Noise Output:** Suitable for sensitive analog circuits.  
- **Wide Operating Temperature Range:** Reliable performance in various environments.  

This regulator is commonly used in power supplies, industrial control systems, and consumer electronics requiring a stable +18V rail.

Application Scenarios & Design Considerations

POSITIVE VOLTAGE REGULATORS

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