NCP553SQ27T1

Current - Output:	80mA
Base Part Number:	NCP553
Supplier Device Package:	SC-82AB
Package / Case:	SC-82A, SOT-343
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	--
Current - Supply (Max):	6µA
Current - Quiescent (Iq):	1µA
Series:	NOCAP™
Voltage Dropout (Max):	1.2V @ 80mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.7V
Voltage - Input (Max):	12V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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NCP553SQ27T1 Application Field and Working PrincipleNCP553SQ27T1 is a Voltage Regulator from the Linear Division of PMIC (Power Management Integrated Circuit), which is developed by ON Semiconductor for power supply applications. This device is an excellent choice for use in a wide range of applications, including applicationswhere precise adjustment of output voltages is required.This device is a voltage regulator specially designed for use in high-noise environments, such as automotive and industrial applications. The device has a low-temperature coefficient, and can accurately maintain output voltage even with large variations in load current or line voltage. In addition, it has a wide range of operating temperatures and excellent thermal stability. This device can also be used in a variety of applications, including embedded systems, intelligent controllers, sensors and actuators.The device operates using a linear voltage regulator circuit. The circuit consists of a voltage reference, an error amplifier, a pass element and feedback loop. The voltage reference is an input voltage reference, which is typically 2.5V or 3.3V. The reference voltage is applied to the error amplifier, which is the main control element of the Linear Voltage Regulator. The error amplifier is an operational amplifier with one input connected to the voltage reference, and the other to the output voltage. The error amplifier produces an output voltage which is proportional to the difference between the reference and output voltages. The output voltage of the error amplifier is then applied to the pass element, which is typically an N-Channel MOSFET. The pass element is used to regulate the output voltage by controlling the amount of current that is allowed to pass through it.The feedback loop is used to adjust the reference voltage, so that the output voltage is maintained at the desired level. The feedback loop consists of a resistor divider, whose output voltage is applied to the inverting input of the error amplifier. The resistor divider produces a voltage proportional to the output voltage, which is compared with the reference voltage by the error amplifier, and the output voltage of the error amplifier is adjusted accordingly.The NCP553SQ27T1 is an excellent choice for applications requiring precise output voltage regulation in extreme conditions. Its high operating temperature and excellent thermal stability make it well-suited for a variety of power supply applications. Furthermore, it has a wide operating temperature and a low temperature coefficient, enabling it to accurately maintain output voltage even with large variations in load current or line voltage. Finally, its low-noise design ensures that it will not generate potentially damaging noise in sensitive environments.

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