MC78M12ABTG

Series:	--
Packaging:	Tube
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	35V
Voltage - Output (Min/Fixed):	12V
Voltage - Output (Max):	--
Voltage Dropout (Max):	--
Current - Output:	500mA
PSRR:	80dB (120Hz)
Control Features:	--
Protection Features:	Over Temperature, Short Circuit
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	TO-220-3
Supplier Device Package:	TO-220AB
Base Part Number:	MC78M

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The MC78M12ABTG is a surface-mount linear voltage regulator with an adjustable output voltage of between 1.2V and 15V. This device is rated to deliver up to 1.5A of current at a maximum junction temperature of 125°C. It incorporates a precision 2.5V reference voltage to ensure that accurate voltage regulation can be maintained over varying loads, input voltages and temperatures. The device also exhibits high PSRR, low noise and high output current capability.The MC78M12ABTG belongs to the family of Power Management ICs (PMICs) within the Voltage Regulators linear classification. Linear voltage regulators use a series pass element to step down the input voltage to the desired output voltage. This series element can be either a bipolar transistor or a field effect transistor, both of which are widely used in linear voltage regulators.The MC78M12ABTG has a series pass element composed of an NPN bipolar transistor with a minimum guaranteed gain of 270. This ensures stable regulation even under heavy load transients. An internal Output Voltage Sense Pin Feedback mechanism ensures that the output voltage will remain at the desired level even if the input voltage changes significantly. The output voltage can be easily adjusted by the use of an external voltage divider. A shut down input can also be used to reduce the power consumption of the regulator when employed in a system where low power operation is desired.The MC78M12ABTG can be used in a variety of applications. It is particularly suitable for use in systems that require adjustable voltage outputs, such as automotive applications and battery-powered applications. The device is also suitable for use in voltage monitoring, power conversion and system power retiming applications thanks to its high PSRR and low noise characteristics.The MC78M12ABTG is designed to operate in the temperature range of -40°C to +125°C, making it ideal for use in harsh environmental conditions. The device is also able to tolerate unpredictable input voltages due to its low start up current and low power consumption. This makes it suitable for use in automotive and industrial applications where the input voltage may vary and the input impedance may change.In conclusion, the MC78M12ABTG is a highly efficient and reliable linear voltage regulator ideal for use in automotive, battery-powered and industrial applications. With its adjustable output voltage and wide operating temperature range, the device is capable of providing accurate voltage regulation over varying loads, input voltages and temperatures. Furthermore, its low power consumption, low start up current and low noise characteristics make it suitable for use in power conversion and system power retiming applications.

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