BA78M20CP-E2 Integrated Circuits (ICs)

Current - Output:	500mA
Base Part Number:	BA78M
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:	58dB (120Hz)
Current - Supply (Max):	6mA
Current - Quiescent (Iq):	4.5mA
Series:	--
Voltage Dropout (Max):	2V @ 500mA (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	20V
Voltage - Input (Max):	33V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The BA78M20CP-E2 is a voltage regulator device from ROHM\'s BA78MxxCP family. It provides a sealed and highly efficient solution for power applications, offering an output current capability of up to 2 A. This voltage regulator can supply a wide variety of voltages such including 2.5 V, 3 V, 4.5 V, 5 V, 6 V and 8 V. The BA78M20CP-E2 is a linear voltage regulator with a wide operating temperature range, making it suitable for a range of applications including communications, industrial, automotive and consumer products. In this article, we will take a look at the application fields and working principle of the BA78M20CP-E2.

Application Field

The BA78M20CP-E2 is widely used in a range of applications, including communications, industrial, automotive, and consumer products. The wide output voltage range, low quiescent current and low output voltage noise of this voltage regulator make it ideal for these applications. It can be used to provide regulated power from a variety of sources such as batteries, AC/DC adapters and solar panels.In communications applications, the BA78M20CP-E2 can be used to provide stable regulated power for voice and data systems. It is suitable for powering sensitive wireless systems such as GSM, 3G, 4G, LTE and Wifi. The low output voltage noise and quiescent current of the voltage regulator make it ideal for these applications.In industrial applications, the BA78M20CP-E2 can be used to provide regulated power for metering and industrial control systems. The low quiescent current of the voltage regulator makes it an ideal choice for these applications, ensuring long battery life for remote and mobile systems. In addition, the wide output voltage range of the voltage regulator ensures that it can be used for a wide range of industrial applications.The wide output voltage range of the BA78M20CP-E2 also makes it suitable for automotive applications. It can be used to provide regulated power for engine control systems, electronic power steering, antilock braking systems, and other applications in the automobile. Finally, the BA78M20CP-E2 can be used in consumer products. Its low quiescent current and wide output voltage range make it ideal for powering low-power portable devices such as cell phones, media players and digital cameras.

Working Principle

The BA78M20CP-E2 is a linear voltage regulator, meaning that it operates by providing a constant output voltage with a fixed drop-out voltage. This is achieved by controlling the input/output current difference, known as the ‘load line’. The output voltage is maintained as the input voltage changes, allowing the device to deliver constant, regulated power to the load. The device has an internal pass-transistor which acts as a switching element. It is controlled by an on/off high voltage switch, and the output voltage is adjusted by a feedback circuit. When the input voltage is higher than the set output voltage, the pass-transistor is switched on and current flows from the input source to the load. When the input voltage drops below the output voltage, the pass-transistor is switched off, stopping the flow of current. This process is repeated continually, resulting in a steady output voltage. The BA78M20CP-E2 also offers protection to the system by detecting short-circuits and providing overvoltage protection and current-limiting. An overvoltage protection circuit is built into the device, which will switch off the output in the event of an overvoltage condition. Finally, the device also has an internal thermal protection circuit, which will shut down the power to the load in the event of an over temperature condition.

Conclusion

The BA78M20CP-E2 is a linear voltage regulator device from ROHM\'s BA78MxxCP family. It provides a sealed and highly efficient solution for power applications, offering an output current capability of up to 2 A, and a wide output voltage range of 2.5 V, 3 V, 4.5 V, 5 V, 6 V, and 8 V. The wide temperature operating range makes it suitable for a range of applications, including communications, industrial, automotive and consumer products. In addition, the device features protection features including overvoltage protection and thermal protection.

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