The LM7805 is one of the most widely used positive voltage regulators, providing a fixed +5V output for various electronic circuits. It belongs to the LM78xx series and comes in the popular TO-220 package.
This IC can handle output currents of up to 1.5A, though adequate heat dissipation (heatsink) is recommended for high current applications due to thermal losses. For example, supplying 1A from a 12V input will result in 7W heat dissipation.
To operate correctly, the IC requires two external capacitors: 0.33µF on the input and 0.1µF on the output. These capacitors, preferably ceramic, ensure circuit stability and minimize voltage ripple.
Fixed +5V Positive Output
TO-220 Package
Output Current: Up to 1.5A
Minimum Input Voltage: 7V
Maximum Input Voltage: 25V
Operating Current (IQ): 5mA
Internal Thermal Overload Protection
Short Circuit Current Limiting
Junction Temperature Max: 125°C
Stable and Reliable Voltage Regulation
| Parameter | Value |
|---|---|
| Output Voltage | +5V |
| Output Current | Up to 1.5A |
| Input Voltage Range | 7V to 25V |
| Quiescent Current | 5mA |
| Package Type | TO-220 |
| Protection Features | Thermal, Short Circuit |
| Operating Temperature | Up to 125°C |
Embedded systems
Consumer electronics
DIY electronics and robotics
Battery-powered devices
Regulated power supply units
Product specifications, features, and design may change over time due to product updates or improvements.
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