BU18SD2MG-MTR Integrated Circuits (ICs)

Voltage Dropout (Max):	0.29V @ 100mA
Supplier Device Package:	5-SSOP
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	68dB (1kHz)
Current - Quiescent (Iq):	80µA
Current - Output:	200mA
Series:	Automotive, AEC-Q100
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
BU18SD2MG-MTR is a voltage regulator with a current output of up to 2A. It is part of a wide range of Low Dropout (LDO) regulators in the BU18S family from Toshiba. This chip can be used for a wide variety of applications and its working principle is not overly complex.

Application Field
BU18SD2MG-MTR is frequently used in power supply circuits and power management circuits. Some of its most common applications include voltage adjustments for USB devices, various low-cut circuits, control circuits for fan motors, and current devices with power MOS FETs. The chip is also frequently used in automotive applications due to its high temperature operation range and its compliance with various safety standards. Furthermore, it is extensively used in robotics, factory automation systems, and equipment used in military operations.

Working Principle
The BU18SD2MG-MTR voltage regulator works based on the principle of voltage control with a constant current output. Its operation is fairly straightforward. The chip continuously monitors the input voltage level and when the input voltage reaches a certain point, the current output gets reduced to the desired level. This ensures the input voltage does not exceed the maximum output and allows for smooth current delivery.The chip is also equipped with protection features such as a voltage drop-out protection, current-limit protection, and a thermal shutdown circuit. The voltage drop-out protection feature prevents the output voltage from exceeding a specified level. The current-limit protection feature prevents the chip from overloads. Lastly, the thermal shutdown circuit protects the chip and prevents it from overheating by automatically shutting it off when the temperature exceeds a certain level.

Conclusion
BU18SD2MG-MTR is a voltage regulator commonly used in a variety of applications due to its versatility and capability to provide clean and stable voltages. It operates based on the principle of voltage control with a constant current output and features various protective features to ensure safe use. All in all, it is a reliable and cost-efficient voltage regulator choice for your electronic circuits.

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