Allicdata Part #: | LM7805ACT-ND |
Manufacturer Part#: |
LM7805ACT |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | IC REG LINEAR 5V 1A TO220-3 |
More Detail: | Linear Voltage Regulator IC Positive Fixed 1 Outpu... |
DataSheet: | LM7805ACT Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | -- |
Packaging: | Tube |
Part Status: | Obsolete |
Output Configuration: | Positive |
Output Type: | Fixed |
Number of Regulators: | 1 |
Voltage - Input (Max): | 35V |
Voltage - Output (Min/Fixed): | 5V |
Voltage - Output (Max): | -- |
Voltage Dropout (Max): | 2V @ 1A (Typ) |
Current - Output: | 1A |
Current - Quiescent (Iq): | 8mA |
PSRR: | 73dB (120Hz) |
Control Features: | -- |
Protection Features: | Over Temperature, Short Circuit |
Operating Temperature: | 0°C ~ 125°C |
Mounting Type: | Through Hole |
Package / Case: | TO-220-3 |
Supplier Device Package: | TO-220-3 |
Base Part Number: | LM7805 |
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LM7805ACT Application Field and Working Principle
The LM7805ACT is a linear voltage regulator that is part of a family of voltage regulator ICs. It comes in many different variations depending on the output voltage and current. The LM7805ACT is a 3-terminal voltage regulator with an adjustable output voltage. It is designed for use in low-noise, low-current applications and is highly efficient, making it an ideal choice for battery-powered applications such as portable electronics.
The LM7805ACT is a member of the LM78XX linear voltage regulator family. It is a simple, three-terminal voltage regulator with an adjustable output range of 1.5 to 37 volts. The device has a wide input voltage range and excellent regulation of the output voltage. It is designed for use in low-noise, low-current applications and can provide up to 100 mA of output current. It is temperature compensated and has a wide operating temperature range of -50°C to +125°C.
LM7805ACT Working Principle
The LM7805ACT works on the principle of negative feedback. A resistor divider is used to provide the voltage reference, and a transistor is used as a current amplifier. The output voltage is monitored and compared to the reference voltage to ensure that the output voltage is always close to the desired value.
To do this, the LM7805ACT uses a combination of current and voltage feedback. The transistor amplifies the difference between the output voltage and the reference voltage. This amplified difference voltage is then used to adjust the input current, which will in turn adjust the output voltage.
The LM7805ACT is designed for low-noise, low-current applications. It is especially suitable for powering logic circuits, microprocessors, and other high-impedance loads. Since the device does not have over-voltage protection, it is advisable to add a fuse between the supply and the device.
Conclusion
The LM7805ACT is a simple three-terminal linear voltage regulator with an adjustable output range of 1.5 to 37 volts. It is designed for low-noise, low-current applications and is highly efficient. The device works on the principle of negative feedback and uses a transistor as a current amplifier. It is temperature compensated and has a wide operating temperature range of -50°C to +125°C.
The LM7805ACT is an ideal choice for battery-powered applications such as portable electronics. It is highly recommended to add a fuse between the supply and the device in order to provide over-voltage protection.
The specific data is subject to PDF, and the above content is for reference
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