MC78M20BT

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	40V
Voltage - Output (Min/Fixed):	20V
Voltage - Output (Max):	--
Voltage Dropout (Max):	--
Current - Output:	500mA
PSRR:	70dB (120Hz)
Control Features:	--
Protection Features:	Over Temperature, Short Circuit
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	TO-220-3
Supplier Device Package:	TO-220AB
Base Part Number:	MC78M

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MC78M20BT application field and working principle

MC78M20BT, a 3-Terminal 0.1 A Positive Volt Regulator, is a typically low-drop linear voltage regulator. This type of regulator is commonly found in applications such as portable PCs and battery-operated devices. It is also suitable for applications such as automotive, telecommunication, audio/visual, and medical devices.The MC78M20BT has a maximum output current of 0.1A which makes it suitable for both low- and high-power applications. It also offers a variety of operating temperature ranges from -40°C to +85°C, making it suitable for use in various operating conditions. In addition, this product offers a variety of protection features such as over-temperature, current limit, and output current limit.The MC78M20BT is a low-dropout regulator, meaning that is has a low quiescent current. This means that the regulator consumes less power during standby. It also has a high output accuracy of ±2% over the full temperature range, ensuring reliable and consistent performance.The MC78M20BT can be used in a variety of applications where a fixed output voltage is required. It can be used to power microcontrollers and other digital components, as well as a variety of other industrial and commercial applications.The MC78M20BT works by regulating the output voltage of an AC or DC source. This is done by means of an internal voltage reference and an error amplifier. The voltage reference sets the desired output voltage, and the error amplifier compares the output voltage to the reference voltage. If the output voltage is higher than the reference voltage, the error amplifier will reduce the output voltage to maintain the reference voltage. Similarly, if the output voltage is lower than the reference voltage, the error amplifier will increase the output voltage.The MC78M20BT can be configured to output a variety of voltages. This can be done by connecting a resistor divider from the output voltage pin to ground, which sets the output voltage. The maximum output voltage can be determined by the reference voltage, the resistor divider, and the load current.In summary, the MC78M20BT is a low-dropout linear voltage regulator suitable for a variety of applications. It has a wide range of operating temperature, low quiescent current, and high output accuracy. It can be used to regulate the output voltage from an AC or DC source, and is commonly found in applications such as portable PCs, battery-operated devices, automotive, telecommunication, audio/visual, and medical devices.

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