MC7805ACT

Current - Output:	1A
Base Part Number:	MC7805
Supplier Device Package:	TO-220AB
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	83dB (120Hz)
Current - Quiescent (Iq):	6mA
Series:	--
Voltage Dropout (Max):	2V @ 1A (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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MC7805ACT Application Field and Working Principle

The MC7805ACT is known as an integrated circuit (IC) voltage regulator manufactured by ON Semiconductor, which belongs to their 7805 family based on the Linear voltage regulator series. It primarily functions as a DC to DC converter that can regulate the voltage of an input source. In general, the MC7805ACT is used in various applications and devices, where it has become the key component of many power supplies, battery chargers, and portable devices.

Overview of the MC7805ACT

The MC7805ACT is a Linear voltage regulator that features a fixed output voltage of +5V and an adjustable output current capacity of up to 1.5A. It has an output voltage accuracy of ±5% over the entire input voltage range of between 6V and 35V.Its input and output voltages are well regulated and its massive ripple rejection capabilities make the MC7805ACT a very good choice for use in noisy environments. Prevents output voltage drifts due to temperature fluctuation while it stays cool with its improved thermal characteristics. The device also allows for ease of use with its built-in protection circuits, as it has over current protection and thermal shutdown to avoid overloading.The MC7805ACT also features low noise and low dropout, with a typical drop out voltage of 2V at an output current of 1.5A. This makes it very efficient in voltage step-down applications and ensures that the circuit remains stable even when supplying a high load.The MC7805ACT is available in the TO-220 package, which is a 5-pin package with a body height of 8mm, with pins arranged in two rows in a 3x2 configuration. The device is very easy to use and it only requires a few external components for operation, so it can be easily incorporated into most circuits.

Applications of the MC7805ACT

The MC7805ACT is a versatile voltage regulator that can be used in a variety of applications. Its excellent high-frequency performance allows for use in low power, high frequency switching voltage regulators. As mentioned earlier, this regulator is commonly used in DC to DC converters and power supplies, where it can regulate the input voltage, so that a steady DC output voltage is maintained. The MC7805ACT is also suitable for use in audio and video equipment, where it can regulate the voltage and reduce interference and noise. It can also be used in battery chargers, where it ensures a steady voltage level for charging the batteries. Furthermore, thanks to its small size and low power consumption, the MC7805ACT is also ideal for digital gadgets and portable devices, such as laptops, tablets, and digital cameras.

Working Principle of the MC7805ACT

The MC7805ACT is based on a Linear Voltage Regulator, which is a type of circuit typically used to produce an output voltage that is proportional to the control voltage. It works by using an input voltage larger than the output voltage, and then controls the current in the circuit to achieve the desired output voltage.The MC7805ACT has 3 main components: the Input voltage, the Control voltage, and the Output voltage. The Input voltage is the voltage applied to the input of the regulator, while the Control voltage is the voltage generated internally by the regulator. The Output voltage is then produced by combining the Input and Control voltages on the regulator\'s output. The MC7805ACT regulates the output voltage through the use of an internal reference voltage and an error amplifier. The internal reference voltage helps to stabilize the output voltage, while the error amplifier performs the actual control of the output voltage. The control voltage is generated by difference between the internal reference voltage and the input voltage, while the error amplifier modifies and amplifies the control voltage as needed to achieve the desired output voltage.

Conclusion

The MC7805ACT is a highly reliable, efficient and compact integrated linear voltage regulator. It is one of the most widely used voltage regulators in systems where a steady and reliable voltage is required. It allows for ease of use with its built-in protection circuits, and its low noise and dropout characteristics make it ideal for use in step-down applications. It can be used in a variety of applications, including power supplies, DC to DC converters, battery chargers, portable devices, audio and video equipment, and digital gadgets.

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