LM78L12ACM/NOPB

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:	100mA
Current - Quiescent (Iq):	3mA
PSRR:	54dB (120Hz)
Control Features:	--
Protection Features:	Over Temperature, Short Circuit
Operating Temperature:	0°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	LM78L12

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LM78L12ACM/NOPB – Application Field and Working PrincipleLinear voltage regulators are a form of switched mode power supply used to power digital circuits and other devices which need a regulated voltage that remain constant throughout their operational lifetime. The LM78L12ACM/NOPB regulator is a 3-terminal linear Regulator, designed to provide 12V of output voltage while being able to handle up to 1A of current. The unit is part of National Semiconductor’s LM78xx series of linear regulators, which are designed for a wide range of applications.The LM78L12ACM/NOPB voltage regulator has a wide operating temperature range of 0 °C to 125 °C and is designed to operate with little to no noise or distortion. It has a low input voltage of 10V to 18V, making it suitable for applications with low voltage sources. Additionally, the LM78L12ACM/NOPB features a maximum output current of 1A and a low dropout voltage of 1.2V at 1A of load current. The unit also includes several protective features such as a reverse current protection circuit and an overvoltage protection circuit, making it ideal for use in high-voltage systems.The LM78L12ACM/NOPB regulator is ideal for use in commercial, industrial and automotive applications such as power supply regulation, battery-powered applications and vehicle-mounted systems. It is also well suited for on-board power conversion in embedded systems, telecommunications equipment and other applications.The LM78L12ACM/NOPB voltage regulator uses the principle of linear voltage regulation to maintain the output voltage at a desired level. This type of regulator works by comparing the output voltage to a reference voltage, which is set internally for this unit. If the load current changes, the regulator\'s internal circuits make the necessary adjustments to keep the voltage at the set value.The LM78L12ACM/NOPB voltage regulator consists of three pins: input, output, and ground (GND). To operate the regulator correctly, VIN, which is the input voltage, should be connected to the + V terminal and GND should be connected to the - V terminal. The output voltage, VOUT, is then fed to the OUT terminal. The LM78L12ACM/NOPB voltage regulator has a maximum power dissipation of 800mW, which increases the temperature during operation. To avoid overheating, a heat sink must be used to dissipate the heat.In summary, the LM78L12ACM/NOPB is a 3-terminal linear regulator designed to provide a stable 12V of output voltage for use in various commercial, industrial, and automotive applications. The device includes protection circuits to protect against reverse current, overvoltage, and excess temperature. When operated correctly, the regulator uses the principle of linear voltage regulation to maintain the output voltage at a desired level, allowing it to be used in a wide range of applications.

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