Voltage Dropout (Max):	1.3V @ 1A (Typ)
Base Part Number:	MC79
Supplier Device Package:	D2PAK
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	61dB (120Hz)
Current - Output:	1A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	-12V
Voltage - Input (Max):	-35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Negative
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

MC7912ACD2TR4 is a category of linear voltage regulator manufactured by MC Technologies. It is a low-dropout linear regulator that is designed to provide a low noise and low output voltage with a wide input voltage range, making it ideal for use in mobile applications. It is particularly suitable for telephone applications as it provides very low power dissipation when in standby mode. It features a maximum output current of 0.1 - 0.3 A, and a voltage range adjustable from 1.2V to 30V. This makes it one of the most versatile voltage regulators available in the market.

Application Field

The MC7912ACD2TR4 is mainly used for powering mobile phones, tablets and other portable devices. It is commonly used for regulating supply voltages of analog and mixed-signal circuits, as well as digital circuits. It can also be used to provide power to critical systems, as it provides a stable and accurate current output.Another important application field for the MC7912ACD2TR4 is in automotive applications. It can be used to regulate supply voltages for electronic components and systems, such as the powertrain control module, antilock brake system, engine control module, and transmission control module.It is also used in devices such as infrared sensors, medical equipment, and smart home appliances.

Working Principle

The MC7912ACD2TR4 is a linear voltage regulator that operates on a feedback loop. It takes an input voltage and regulates it to a desired output voltage within a set range. It works by comparing the input voltage to an internal reference voltage. Any difference between the two is amplified and used to adjust the output voltage.When the output voltage is below the desired level, the voltage regulator increases the output voltage until it is the same as the reference voltage. When the output voltage is too high, the output voltage is decreased until it is the same as the reference voltage. In this way, the output voltage is always regulated to the desired level.This regulator has a low-dropout voltage, meaning that it requires very little input voltage to operate. This makes it suitable for portable devices and automotive applications, as it minimizes the power consumption.

Conclusion

The MC7912ACD2TR4 is a versatile and reliable linear voltage regulator. It is suitable for use in mobile, automotive, and other applications, as it provides a low-dropout voltage and a wide input voltage range. It also features a low noise output, making it ideal for powering electronics and other sensitive systems.

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