MC79M12CDTRK

Voltage Dropout (Max):	1.1V @ 500mA (Typ)
Base Part Number:	MC79M
Supplier Device Package:	DPAK
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	60dB (120Hz)
Current - Output:	500mA
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Part Status:	Obsolete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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MC79M12CDTRK Application in Linear Voltage Regulators

The MC79M12CDTRK is one of the most preferred linear voltage regulators in the market. It has been used extensively in many applications that require a highly efficient and reliable power supply. This device helps regulate and maintain a constant voltage output in a variety of environments and applications, from industrial, medical, and commercial settings, to residential needs.The MC79M12CDTRK is a part of the MOSAIC family of linear regulator integrated circuits (ICs) manufactured by Freescale Semiconductor. It is specially designed to provide robustness and stable power performance and is capable of providing a high level of protection against thermal shutdown and current limiting. This regulator has also been designed to deal with a wide range of input voltage variations and fluctuations, making it suitable for applications that require efficient power delivery and robust power sources.

Specifications and Features of MC79M12CDTRK

The MC79M12CDTRK operates with a maximum input voltage of 40 volts, with an output voltage adjustable to 12 volts, 1.5 amp maximum output, and a ripple rejection rate of more than 55 dB. It features a low 0.25 ohm internal MOSFET with a maximum on-resistance of 1.5 ohms. The MC79M12CDTRK also offers a shutdown input, output enable/ disable and open-drain reset pins. The typical applications of this device include providing a stable 12V output for automotive, industrial, and medical designs, as well as for residential uses.

Working Principle of the MC79M12CDTRK

The MC79M12CDTRK is a type of linear voltage regulators that operates based on the principle of linear regulation. Linear voltage regulators are typically used to provide a stable output voltage across a load by varying the resistance of the circuitry that is placed in series between the input voltage source and the load.The MC79M12CDTRK works by using a series of internal transistors or field-effect transistors (FETs). These FETs are used to direct the current through the voltage regulator and control the current flow and the voltage stability. When the voltage is varied, these FETs are adjusted so that the output voltage remains stable, no matter changes in the input voltage.

Limitations of the MC79M12CDTRK

The MC79M12CDTRK may have a few limitations that potential users should take into consideration. Firstly, although it is a highly efficient voltage regulator, its power rating is limited and is only suitable for applications that require low-power devices. Secondly, if the input voltage is too low, the regulator will not be able to operate effectively and will not provide an output voltage. And lastly, the power converter is only able to deliver a single output voltage, meaning that multiple outputs require multiple converters.

Conclusion

The MC79M12CDTRK is a linear voltage regulator that has been used extensively in many applications and industries due to its ability to deliver high efficiency and stable power performance. This device operates based on the principle of linear regulation using a series of FETs to control and maintain the output voltage, regardless of the incoming voltage. Despite its limitations, this regulator remains a popular choice among many users who require a reliable and efficient medium-input voltage source.

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