BA7812CP-E2 Integrated Circuits (ICs)

Current - Output:	1A
Base Part Number:	BA78
Supplier Device Package:	TO-220CP-3
Package / Case:	TO-220-3 Cropped Leads
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	63dB (120Hz)
Current - Supply (Max):	6mA
Current - Quiescent (Iq):	4.5mA
Series:	--
Voltage Dropout (Max):	2V @ 1A (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	12V
Voltage - Input (Max):	27V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
BA7812CP-E2 is a linear three-terminal voltage regulator integrated circuit(IC). It is a part of Panasonic Industry and Automotive Electronics’s line of PMIC voltage regulators. The BA7812CP-E2 is a low-dropout (LDO) linear regulator and works by suppressing voltage drop across two pins, while maintaining the nominal voltage at the output pin. It is capable of providing a stable output voltage with a wide input voltage range, low noise, and high efficiency, which makes it well-suited for various applications.

Features
The BA7812CP-E2 linear voltage regulator chip is built to meet the needs of industrial, automotive, and communication systems. This IC is packaged in a small 8-pin SOP package, making it suitable for space-constrained applications. With its integrated protection features such as thermal shutdown, overcurrent protection, and reverse current protection, the BA7812CP-E2 provides additional safety and reliability. Additionally, its high fidelity performance, low ripple noise, and high EMC performance make it a good choice for professional audio applications.

Application Field
The BA7812CP-E2 is an excellent power management solution for industrial equipment, car audio systems, and communication devices. It is an ideal choice for automotive applications like in-car entertainment systems and vehicle electrical systems power supplies. The integrated voltage drop feature of the BA7812CP-E2 enables it to work as a low-side switch in a power supply system to turn on or off devices that require a continuous supply of current. Additionally, the high EMC performance of this IC also makes it suitable for audio operations in car configurations. Other applications for BA7812CP-E2 include personal digital assistants (PDAs), laptops, and gaming consoles. For example, it could be used to regulate the voltage of a laptop’s CPU core and system bus.

Working Principle
The BA7812CP-E2 is a linear three-terminal voltage regulator IC that works by suppressing the voltage drop across two pins while maintaining the nominal voltage at the output pin. This IC is capable of providing a stable output voltage with a wide input voltage range and low noise. The internal transistors of the BA7812CP-E2 form a totem-pole configuration, which allows it to boost and regulate the voltage on its output pin. This configuration also helps suppress the internal output impedance of the IC, enabling it to provide a low dropout voltage of less than 0.2V. Additionally, to protect the IC from overvoltage and short circuit conditions, the BA7812CP-E2 comes with an integrated overcurrent protection circuit, as well as an integrated thermal shutdown circuit.

Conclusion
The BA7812CP-E2 linear voltage regulator chip from Panasonic Industry and Automotive Electronics’s PMIC range is an excellent low-dropout three-terminal voltage regulator and is suitable for a variety of applications in industrial, automotive, and communication systems. With its integrated protection features, wide input voltage range, low noise, and high fidelity performance, the BA7812CP-E2 is a reliable and efficient voltage regulator. It is also capable of boosting and regulating the voltage on its output pin, enabling it to provide a stable output voltage to various devices.

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