L7812 12V Linear Voltage Regulator IC TO-220

Description

Description

The L7812 is a fixed-output linear voltage regulator designed to provide a stable 12V DC output from a higher input voltage source. It uses internal reference circuitry and pass transistors to maintain constant voltage regulation under varying load and input conditions. The device includes built-in current limiting and thermal shutdown protection, ensuring safe and reliable performance. With minimal external component requirements and a robust TO-220 package, the L7812 is ideal for powering analog circuits, control systems, relays, and industrial electronics.

Features

• Fixed 12V regulated output

• Maximum output current up to 1A

• Wide input voltage range (14V to 35V)

• Built-in current limiting protection

• Thermal shutdown protection

• Internal short-circuit protection

• Stable linear voltage regulation

• Low external component requirement

• Suitable for analog and control circuits

• Reliable industrial power supply solution

• TO-220 package for effective heat dissipation

• Easy PCB mounting

• Low ripple output

• Simple power design integration

Specifications

• Model: L7812
• Device Type: Linear Voltage Regulator
• Output Voltage: 12V Fixed
• Maximum Output Current: 1A
• Input Voltage Range: 14V to 35V
• Dropout Voltage (Typical): 2V
• Output Voltage Tolerance: 4%
• Protection Features: Current Limit, Thermal Shutdown, Short Circuit Protection
• Quiescent Current: Typical 6mA
• Line Regulation: Typical 50mV
• Load Regulation: Typical 100mV
• Operating Temperature Range: -40C to +125C
• Package Type: TO-220
• Mounting Type: Through-Hole
• Application Type: Power Regulation

Links

• 3D Model
• Datasheet

Tutorials

• L7812CV | Voltage Regulator Tutorial