The classic L7805 linear voltage regulator in a TO-220 package, capable of delivering a clean, regulated 5.0 V output (±2%) from an input voltage of 7–35 V. With built-in current limiting and thermal shutdown protection, it's a robust and forgiving choice for powering just about any 5 V electronics project.

As a linear regulator, excess voltage is dissipated as heat. The dropout voltage is approximately 2 V, so a minimum input of 7 V is required for a stable 5 V output. Higher input voltages and currents produce more heat — a heatsink is recommended for sustained loads above a few hundred milliamps.

Key Features

• 5.0 V Regulated Output – ±2% regulation accuracy
• Up to 1.5 A Output – With appropriate heatsinking
• Wide Input Range – 7–35 V DC
• Built-In Protection – Internal current limiting and thermal shutdown
• TO-220 Package – Easy to heatsink and mount

Specifications

• Output Voltage – 5.0 V
• Maximum Output Current – 1.5 A
• Input Voltage Range – 7–35 V
• Dropout Voltage – ~2 V
• Quiescent Current – 6 mA
• Package – TO-220
• Junction Thermal Resistance – 62.5°C/W (without heatsink can dissipate ~2 W)

Ideal For

• Powering 5 V circuits from battery packs or wall adapters
• Arduino and microcontroller power supplies
• Breadboard and prototyping power rails
• Any project needing a simple, reliable 5 V source