MC78T05ABT

Current - Output:	3A
Supplier Device Package:	TO-220AB
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	75dB (120Hz)
Current - Supply (Max):	6mA
Current - Quiescent (Iq):	5mA
Series:	--
Voltage Dropout (Max):	2.5V @ 3A
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Part Status:	Obsolete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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MC78T05ABT is one of the most commonly used linear voltage regulators from Texas Instruments (TI). It is a 3-terminal positive voltage regulator with an adjustable output voltage between 2.3V to 28V. Its main application field includes power supplies for consumer electronics and process control and for a wide range of general purpose application with low noise and high accuracy. In this article, we will discuss about the working principle and application field for MC78T05ABT, and explain how it can be used for a wide variety of applications. Working PrincipleThe MC78T05ABT is a positive voltage regulator with three pins: Input voltage, Output voltage and ground. The input voltage is supplied to the regulator, which then regulates the output voltage to the desired level. This is done by using a series of internal voltage drops, which take the place of the zener diode used in the traditional regulator configuration. This allows the regulator to have very low noise, high accuracy, and fast response time. The output voltage of the regulator is controlled by an internal transistor, which is operated by the voltage difference between the input voltage and the output voltage. The output current of the regulator is determined by the size of the pass transistor and the circuit’s load current. The maximum output current for the MC78T05ABT is 2.5A. Additionally, the maximum input voltage for the regulator is 35V and its temperature range is from -40°C to 125°C.ApplicationsThe MC78T05ABT is mainly used for powering consumer electronics, such as smartphones, tablets, portable computers and gaming equipment. It is also suitable for process control and general purpose applications. Its fast response time and low noise feature makes it the ideal choice for environments with rapid current demand changes or for applications that require low-noise power supplies.MC78T05ABT also finds application in automotive power solutions such as in car audio systems and automotive ECU systems. Its temperature range also make it suitable for industrial applications, such as motor control, network communication and power management.ConclusionThe MC78T05ABT is a versatile, low noise, and highly accurate 3-terminal voltage regulator, suitable for a wide range of consumer electronic, process control, automotive and industrial applications. Its fast response time and low noise are optimal for applications that require rapid current load changes. The adjustable output voltage range of 2.3V to 28V, as well as the maximum output current of 2.5A make the MC78T05ABT a versatile and reliable regulator.

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