MC7808CTG

Current - Output:	1A
Base Part Number:	MC7808
Supplier Device Package:	TO-220AB
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	62dB (120Hz)
Current - Quiescent (Iq):	8mA
Series:	--
Voltage Dropout (Max):	2V @ 1A (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	8V
Voltage - Input (Max):	35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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IntroductionThe MC7808CTG is a low-voltage linear regulator suitable for applications such as a low-noise regulated power supply for digital logic, analog loads, and DC motor control. It is a 3-terminal device that can provide up to 8A of output current. It has a wide input voltage range from 2.5V to 45V, which makes it useful for many applications. The MC7808CTG has an adjustable output voltage from 1.2V to 37V. It is capable of over-current and over-temperature protection.FeaturesThe MC7808CTG is a 3-terminal adjustable voltage regulator. It has several features, including:• Wide Input Voltage Range: 2.5V to 45V• Adjustable Output Voltage: 1.2V to 37V• Maximum Output Current: 8A• Low Dropout Voltage: 0.2V• Overcurrent and Over-temperature Protection• Low EMI Generation• Compliant to RoHS DirectiveThe MC7808CTG has a very low dropout voltage of only 0.2V. This makes it ideal for applications where the input voltage is close to the output voltage. It also has a low EMI generation which can help reduce interference in sensitive circuits. In addition, it is compliant with the RoHS Directive, making it environmentally friendly. Application FieldsThe MC7808CTG is suitable for a wide range of applications, including: • Low-noise power supply for digital logic and analog loads• Voltage regulation for SMPS • DC motor control• Battery charging circuits• Voltage regulation for automotive applicationsThe MC7808CTG is suitable for use in a wide range of applications due to its wide input voltage, adjustable output voltage, and high output current. It is also suitable for use in automotive applications due to its compliance with the RoHS Directive. Working Principle The MC7808CTG works on the principle of linear regulation. It has an internal P-channel MOSFET that controls the input current and an op-amp that controls the output voltage. The op-amp is connected to a feedback resistor that determines the output voltage. The P-channel MOSFET is connected to an internal current sense resistor, which senses the input current and limits the output current. The MC7808CTG operates by comparing the actual output voltage to the reference voltage. The difference between the two is sent to the output amplifier, which adjusts the output voltage by changing the duty cycle of the MOSFET. As the load current increases, the duty cycle increases, resulting in an increase in the output voltage. When the load current decreases, the duty cycle decreases, resulting in a decrease in the output voltage. ConclusionThe MC7808CTG is a low-voltage linear regulator suitable for applications such as a low-noise regulated power supply for digital logic, analog loads, and DC motor control. It has a wide input voltage range from 2.5V to 45V, with an adjustable output voltage from 1.2V to 37V. It has an internal P-channel MOSFET that controls the input current, and an op-amp that controls the output voltage. This makes it suitable for a wide range of applications, including low-noise power supplies and voltage regulation for SMPS, DC motor control, and automotive applications.

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