MC78L15ABDR2

Current - Output:	100mA
Base Part Number:	MC78L15
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	39dB (120Hz)
Current - Quiescent (Iq):	6.5mA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	15V
Voltage - Input (Max):	35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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MC78L15ABDR2 Application Field and Working Principle

Introduction:

The MC78L15ABDR2 3-terminal voltage regulator integrates a low dropout (LDO) voltage regulator, an adjustable voltage regulator, and a 15V zener diode. It provides a low on-resistance for extremely low dropout voltages. The device provides better than 5% output accuracy over a wide temperature range, and is also available in a two-terminal 3-pin package and a three-terminal 3-pin package. The MC78L15ABDR2 is well suited for cost sensitive applications. This article will discuss the MC78L15ABDR2\'s application fields and working principle.

Application Fields:

The MC78L15ABDR2 is an ideal component for a variety of applications, including:

• Create a regulated voltage for power supplies
• Act as a voltage reference for other components
• Act as a buffer to reduce load change
• Prevent over-voltage or under-voltage caused by component variation
• Provides the necessary spacing between two components

The MC78L15ABDR2 can be used in a variety of settings, such as in audio and video equipment, optoelectronics, laptop computers, cellular phones, automotive electronics, and general purpose regulators.

Working Principle:

The MC78L15ABDR2 regulator is designed to regulate an input voltage to a desired output voltage. The regulator is a three-terminal device, with one input (Vin), one output (Vout), and one ground (GND). The device is rated for a maximum input voltage of 15V, and the output voltage is adjustable between 1V to 15V. The voltage regulator works by using a series of MOSFET transistors that act as a switch connected to the input, with the output connected to a low dropout (LDO) regulator. When the input voltage is above the set threshold, the MOSFET transistors switch is closed, and the voltage is applied as is to the output. When the input voltage is below the threshold, the MOSFET transistors switch is opened, and the low dropout regulator is used to maintain the output voltage. The device also has an internal current-limiting circuit, which will limit the current that can flow through the device in case of an overload. The MC78L15ABDR2 is perfect for applications requiring a precise output voltage with low power dissipation. It has a wide temperature range, making it suitable for environments where precise outputs may be needed at wide range of temperatures.

Conclusion:

The MC78L15ABDR2 is a versatile voltage regulator perfect for cost sensitive applications. It is well-suited for audio and video equipment, optoelectronics, laptop computers, cellular phones, automotive electronics, and general purpose regulators. The device works by using a series of MOSFET transistors that act as a switch connected to the input, and a low dropout regulator connected to the output. The device\'s wide temperature range makes it suitable for environments where precise outputs are needed at wide range of temperatures.

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