MC79L08F-TP

Current - Output:	100mA
Base Part Number:	MC79L
Supplier Device Package:	SOT-89
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	68dB (120Hz)
Current - Quiescent (Iq):	6mA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	-8V
Voltage - Input (Max):	-30V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Negative
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The MC79L08F-TP is an advanced, low-power three-terminal voltage regulator with adjustable output voltage range from 1.5V to 20V. It offers many features like high power dissipation capability, temperature limiting, current limiting, surge current protective, overvoltage protection, superior thermal stability etc. which makes it suitable for multiple applications.

Introduction

A voltage regulator is an electrical or electronic device designed to maintain the output voltage of a circuit or power supply at a desired value, unaffected by variations in the input voltage and load current. It is an important component of a power supply, as it not only maintains the desired voltage level but also isolates the load from the supply system, does not allow excessive current flow, and also protects from electrical transients and disruptions. The MC79L08F-TP is a linear voltage regulator integrated circuit manufactured by ON Semiconductor. It is available in the TO-92 three-lead metal can package, which is ideal for through-hole mounting applications. It features adjustable output voltage range from 1.5V to 20V and offers high power dissipation capability, temperature limiting, current limiting, surge current protection, overvoltage protection, and superior thermal stability. It is widely used in many power supply applications.

Applications

The MC79L08F-TP voltage regulator is used in multiple applications in various industries, such as automotive, industrial, telecommunications and consumer electronics. It is often used in automotive applications to protect the vehicle electrical system from overvoltage conditions, providing reliable and accurate regulation of the vehicle battery voltage.In industrial applications, the MC79L08F-TP is widely used in electronic control systems, test and measurement systems, and power circuit monitoring systems.In telecommunications and consumer electronics, the MC79L08F-TP is often used as a power supply for computers, data processing, audio and video equipment, remote sensing systems and other electronics.

Working Principle

The MC79L08F-TP is a low dropout (LDO) voltage regulator with an adjustable output voltage range from 1.5V to 20V. It consists of two transistors, a temperature sensing diode and two resistors connected in a voltage divider chain. It ensures stable output voltage by controlling the current flow through the transistor in the circuit.When the input voltage increases, the voltage at the non-inverting input of the voltage regulator rises, and the output voltage tends to rise. To offset this, the internal circuit of the MC79L08F-TP reduces the current flowing through the transistor, thus adjusting the output voltage to maintain the desired voltage level.When the input voltage falls, the voltage at the non-inverting input of the voltage regulator decreases, and the output voltage tends to decrease as well. To fix this, the internal circuit of the MC79L08F-TP increases the current flowing through the transistor, thus adjusting the output voltage to maintain the desired voltage level.

Conclusion

The MC79L08F-TP is an advanced, low-power three-terminal voltage regulator with adjustable output voltage range from 1.5V to 20V. It offers high power dissipation capability, temperature limiting, current limiting, surge current protection, overvoltage protection, and superior thermal stability. It is widely used in multiple applications in the automotive, industrial, telecommunications, and consumer electronics industries. The MC79L08F-TP ensures stable output voltage by controlling the current flow through the transistor in its circuit.

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