LM7818 18V Positive Voltage Regulator IC

LM7818 18V Positive Voltage Regulator IC

The LM7818 is a fixed +18V positive linear voltage regulator designed to provide a stable and reliable +18V DC output for a wide range of electronic applications. It is part of the 78xx family of positive voltage regulators, widely used in power supply circuits, microcontroller boards, embedded systems, and industrial electronics.

The LM7818 features built-in current limiting, thermal shutdown, and short-circuit protection, ensuring safe and reliable operation. It is commonly available in TO-220 and TO-3 packages, making it suitable for both prototyping and production designs with proper heatsinking.

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Applications

• +18V regulated power supplies
• Microcontroller and digital logic circuit power rails
• Embedded systems and development boards
• Industrial control and automation systems
• Audio and signal processing circuits
• Measurement and instrumentation equipment
• General-purpose power supply modules

Features

• Fixed Output Voltage: +18V DC
• Regulator Type: Positive linear voltage regulator
• Output Current: Up to 1A (typical, depends on package and heatsinking)
• Built-in thermal shutdown and current limiting protection
• Short-circuit protected
• Good line and load regulation
• Requires minimal external components
• Stable and reliable operation
• High reliability and long service life