“LA42DWQ-22 1K 2K 5K 10K | Potentiometer” has been added to your cart. Continue shopping
SALE
LM7805 is a voltage regulator IC that maintains a 5 v constant output voltage. This voltage regulator is a member of the 78xx series of constant linear voltage regulators.
This is a popular low-cost voltage regulator IC used to maintain voltage fluctuations with a wide range of applications.
24x7 Support +968 99 26 36 46
Premium Quality
10 days Return & Exchange
Deliver in 5-7 Days
Worldwide Shipping
Sellers can Quote
ر.ع.18.800Original price was: ر.ع.18.800.ر.ع.17.300Current price is: ر.ع.17.300.
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
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
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.
7805 as +5V Voltage Regulator
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. 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
