MC7906CT-BP

Current - Output:	1A
Base Part Number:	MC79*CT
Supplier Device Package:	TO-220
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	60dB (120Hz)
Current - Quiescent (Iq):	2mA
Series:	--
Voltage Dropout (Max):	1.1V @ 1A (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	-6V
Voltage - Input (Max):	-35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Negative
Part Status:	Active
Packaging:	Bulk

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IntroductionThe MC7906CT-BP is a linear voltage regulator from ON Semiconductor, and is part of the company\'s Power Management, Integrated Circuit (PMIC) range. The MC7906CT-BP has a wide range of potential applications, and it is important to understand the requirements of each particular application in order to ensure that the regulator is the correct choice for the job. This article will discuss the potential application fields for the MC7906CT-BP and its working principle.Application FieldsThe MC7906CT-BP is a positive voltage regulator – an adjustable positive voltage regulator, to be precise. It can provide an output voltage of between 5 volts and 7 volts, which makes it suitable for a wide range of applications, such as automotive motors, DVD players, laptops and tablets, home appliances, battery and charger systems, USB chargers and cordless phones.The positive voltage regulator is commonly used in consumer electronics where a regulated voltage is needed. It is also used to provide a regulated voltage in the form of a 5V or 12V power supply for PCs, servers and other critical circuits. It is also used to power microprocessors and other ICs, as well as LED lighting systems.The MC7906CT-BP can be used in situations where a regulated voltage is required, such as in digital systems and medical equipment. It also has proven to be a particularly advantageous choice for handheld devices as it has an exceptionally low quiescent current (the amount of current an IC draws when it is not actively switching), which results in better battery life.The Working PrincipleIn order to understand its operation, it is important to have an understanding of the different components that make up the regulator. The regulator consists of several components, namely the input voltage, a reference voltage, an error amplifier, a pass-transistor, and the output voltage.The input voltage is the source voltage that is provided to the regulator. The reference voltage is a fixed voltage (typically set at around 5V or 12V). The error amplifier acts as a comparator, comparing the reference voltage with the input voltage. The pass-transistor is an electronic switch which is used to adjust the output voltage depending on the difference between the input and reference voltage.When the input voltage exceeds the reference voltage, the error amplifier output will be low and the pass-transistor will be off. This effectively disconnects the output voltage from the source voltage, and thus the voltage is regulated. In contrast, when the input voltage is lower than the reference voltage, the error amplifier output will be high and the pass-transistor will be on, allowing the output voltage to be equal to the source voltage.ConclusionThe MC7906CT-BP is an adjustable positive voltage regulator from ON Semiconductor. It has a wide range of applications, including in consumer electronics, digital systems, medical equipment, handheld devices, and various other critical circuits. In order to use the voltage regulator, it is important to understand its working principle, which involves an input voltage, a reference voltage, an error amplifier, a pass-transistor and an output voltage. Using the MC7906CT-BP correctly in the designated application field can provide an effective and reliable voltage regulation.

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