7805 5V 500mA Regulator IC

The 7805 5V Voltage Regulator IC provides a stable 5V output from higher input voltages up to 35V. It is the standard linear regulator for powering microcontrollers, sensors, and any circuit requiring clean 5V power.

Key Features

• Fixed 5V output
• Input voltage range 7V-35V
• 500mA-1A output current (with heatsink)
• Short-circuit protection
• Thermal overload protection
• TO-220 package for heatsink mounting
• Only 2 external capacitors needed

Technical Specifications

Applications

• Arduino power supply
• Sensor module powering
• Digital logic power
• Clean 5V reference
• Battery-powered systems
• General voltage regulation

Important Notes

• Input voltage must be at least 7V (5V + 2V dropout)
• Heat dissipation = (Vin – 5V) x Iout – use heatsink if >0.5W
• Add 0.33μF input and 0.1μF output capacitors for stability
• Tab is connected to GND – can mount directly to chassis
• For high current, consider switching regulator (more efficient)
• 78L05 in TO-92 package available for low current (100mA)