LM7805 Voltage Regulator: Features, Price, Application
yunying Release time：2023-09-28 Page View：1006
Fixed 2.54mm LM7805 PMIC TO-220-3
Hello guys this is A LM7805 Voltage Regulator ic Tutorial. A widely used voltage regulator is the LM7805 Voltage Regulator IC. More information on the LM7805 will be revealed by this article.Semiconductors, Capacitors, Resistors, and ICs are all available in a wide variety. RFQ, welcome!
LM7805 Pinout
LM7805 Pinout
lm7805 pin configuration
LM7805 CAD Model
Symbol
LM7805 Symbol
Footprint
LM7805 Footprint
3D Model
LM7805 3D Model
LM7805 Description
An LM7805 Voltage Regulator is a voltage regulator that outputs +5 volts that finds its application in most electronics projects. In electronic circuits, voltage regulators are very common. For a variable input voltage, they offer a constant output voltage. In our situation, the LM7805 IC is a well-known regulator IC that is used in a wide range of projects. The designation LM7805 has two meanings: "78" indicates that it is a positive voltage regulator, and "05" indicates that it outputs 5V. As a result, our LM7805 will output a value of +5V.
This IC has a maximum output current of 1.5A. However, because the IC loses a lot of heat, a heat sink is recommended for projects that use a lot of currents. If the input voltage is 12V and you are consuming 1A, then (12-5) * 1 = 7W is the result. These 7 watts will be converted to heat and dissipated.
LM7805 Feature
• Output Current in Excess of 1.0 A
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe−Area Compensation
• Output Voltage Offered in 1.5%, 2% and 4% Tolerance
• Available in Surface Mount D2PAK−3, DPAK−3 and Standard 3−Lead Transistor Packages
• NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements;
AEC−Q100 Qualified and PPAP Capable
LM7805 Price
The price of an LM7805 voltage regulator can vary depending on various factors such as the manufacturer,
package type, and quantity purchased. Generally, the price of an LM7805 voltage regulator ranges from
$0.20 to $1.50 per unit. However, it is important to note that prices may vary based on the supplier, location,
and market conditions. It is recommended to check with electronic component distributors or retailers for the
most up-to-date pricing information.
Application
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
LM7805 Equivalent
LM7805 Package
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Please swipe to rthe end of the article to DOWNLOAD LM7805 datasheets and manufacturer documentation.
LM7805 Circuit
LM7805 voltage regulator circuit
How does lm7805 voltage regulator work?
The LM7805 voltage regulator takes an unregulated voltage and turns it into a steady 5 volt voltage.
It does this by using a feedback loop. The feedback loop has three parts:
An error amplifier
A voltage reference
A pass transistor
The error amplifier checks the output voltage against the voltage reference. If the output voltage is too low, the error amplifier tells the pass transistor to let more current flow. This increases the output voltage.
If the output voltage is too high, the error amplifier tells the pass transistor to let less current flow. This decreases the output voltage.
The LM7805 also has protection features to keep it from being damaged. These features include:
Overcurrent protection
Thermal shutdown
Short-circuit protection
In summary:
The LM7805 voltage regulator takes an unregulated voltage and turns it into a steady 5 volt voltage. It does this by using a feedback loop to check the output voltage and adjust the current flow accordingly. The LM7805 also has protection features to keep it from being damaged.
Related articles
Specifications
- Manufacturer :
- Fairchild Semiconductor
- Product Category :
- Voltage Regulators - Linear
- Accuracy :
- 4 %
- Base Part Number :
- LM7805
- Current Rating :
- 1A
- Dropout Voltage :
- 2V
- Dropout Voltage1-Nom :
- 2V
- ECCN Code :
- EAR99
- Height :
- 16.3mm
- JESD-609 Code :
- e3
- Lead Free :
- Lead Free
- Length :
- 10.67mm
- Max Output Current :
- 1A
- Max Output Voltage :
- 5.2V
- Min Input Voltage :
- 7V
- Min Output Voltage :
- 5V
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Mount :
- Through Hole
- Mounting Type :
- Through Hole
- Nominal Output Voltage :
- 5V
- Number of Functions :
- 1
- Number of Outputs :
- 1
- Number of Pins :
- 3
- Number of Regulators :
- 1
- Number of Terminations :
- 3
- Operating Temperature :
- -40°C~125°C
- Output Configuration :
- Positive
- Output Type :
- FIXED
- Output Voltage :
- 5V
- Output Voltage 1 :
- 5V
- Output Voltage Accuracy :
- 4 %
- Package / Case :
- TO-220-3
- Packaging :
- Tube
- Part Status :
- Obsolete
- Pbfree Code :
- yes
- Power Supply Rejection Ratio (PSRR) :
- 73dB
- Protection Features :
- Over Temperature, Short Circuit
- PSRR :
- 73dB (120Hz)
- Published :
- 2014
- Quiescent Current :
- 8mA
- Radiation Hardening :
- No
- REACH SVHC :
- No SVHC
- RoHS Status :
- RoHS Compliant
- Terminal Finish :
- Tin (Sn)
- Terminal Pitch :
- 2.54mm
- Terminal Position :
- Single
- Voltage - Input (Max) :
- 35V
- Voltage Dropout (Max) :
- 2V @ 1A Typ
- Voltage Tolerance-Max :
- 5%
- Weight :
- 1.214g
- Width :
- 4.7mm
Datasheets
- Datasheets
- LM7805CT
Product comparison
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ImagePart NumberManufacturerToleranceVoltage - RatedProduct StatusPackage / CaseProduct CategoryView Compare
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TO-220-3
Voltage Regulators - Linear
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TO-261-4, TO-261AA
Voltage Regulators - Linear
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TO-220-3
Voltage Regulators - Linear
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TO-220-3
Voltage Regulators - Linear
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Frequently Asked Questions
How to Use LM7805?
The LM7805 is a small electronic component that helps provide a steady and regulated output voltage of +5 volts. To use it, you connect the unregulated input voltage to the input pin (VIN) and the ground pin (GND) to the circuit's ground. Then, connect the output pin (VOUT) to the components or circuitry that need a stable 5V power supply. You can also add capacitors for better performance. Finally, measure the output voltage to ensure it's around +5V. Remember to consult the datasheet for more specific details.
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