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The 7805 Voltage Regulator IC is a commonly used voltage regulator that finds its application in most of the electronics projects. It provides a constant +5V output voltage for a variable input voltage supply.
LM7805 Pinout Configuration
Pin Number | Pin Name | Description |
Pink panther passport to peril free mac. 1 | Input (V+) | Unregulated Input Voltage |
2 | Ground (Gnd) | Connected to Ground |
3 | Output (Vo) | Outputs Regulated +5V |
7805 Regulator Features
- 5V Positive Voltage Regulator
- Minimum Input Voltage is 7V
- Maximum Input Voltage is 25V
- Operating current(IQ) is 5mA
- Internal Thermal Overload and Short circuit current limiting protection is available.
- Junction Temperature maximum 125 degree Celsius
- Available in TO-220 and KTE package
Ultimate apocalypse fatal scar error. Note: Complete Technical Details can be found at the 7805 datasheet given at the end of this page.
Other Voltage Regulators
LM7806, LM7809, LM7812, LM317, LM7905, LM7912, LM117V33, XC6206P332MR.
Brief Description of 7805 Voltage Regulator IC
Voltage regulators are very common in electronic circuits. They provide a constant output voltage for a varied input voltage. In our case the 7805 IC is an iconic regulator IC that finds its application in most of the projects. The name 7805 signifies two meaning, “78” means that it is a positive voltage regulator and “05” means that it provides 5V as output. So our 7805 will provide a +5V output voltage.
The output current of this IC can go up to 1.5A. But, the IC suffers from heavy heat loss hence a Heat sink is recommended for projects that consume more current. For example if the input voltage is 12V and you are consuming 1A, then (12-5) * 1 = 7W. This 7 Watts will be dissipated as heat.
Data Persamaan Transistor
7805 as +5V Voltage Regulator
Persamaan Transistor 78l05 Dalam
This is a typical application circuit of the 7805 IC. We just need two capacitors of vale 33uf and 0.1uf to get this IC working.
The input capacitor 0.33uF is a ceramic capacitor that deals with input inductance problem and the output capacitor 0.1uF is also a ceramic capacitor that adds to the stability of the circuit. These capacitors should be placed close to the terminals for them to work effectively. Wurm unlimited for mac. Also they should be of ceramic type, since ceramic capacitors are faster than electrolytic.
7805 as adjustable output Regulator
This IC can also act as an adjustable output voltage regulator, meaning you can also control the output voltage for your desired value using the below circuit.
Here, the input voltage can be anywhere between 9V-25V, and the output voltage can be adjusted using the value of resistance R1 and R2. The value can be calculated using the below formulae.
Where, Vxx=5, IQ = 5*10-3
7805 Applications
- Constant +5V output regulator to power microcontrollers and sensors in most of the projects
- Adjustable Output Regulator
- Current Limiter for certain applications
- Regulated Dual Supply
- Output Polarity-Reversal-Protection Circuit
