NCP662SQ28T1 Integrated Circuits (ICs)

Current - Output:	100mA
Base Part Number:	NCP662
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:	Enable
PSRR:	--
Current - Supply (Max):	6µA
Current - Quiescent (Iq):	1µA
Series:	--
Voltage Dropout (Max):	0.5V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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PMIC - Voltage Regulators - LinearThe NCP662SQ28T1 is a voltage regulator designed by ON Semiconductor, belonging to the category of linear voltage regulators. It features low dropout (LDO) type regulation with an adjustable input to output range and is designed specifically for low voltage, low current and low noise applications, such as portable electronic devices, automotive and industrial equipment.The device includes a low-noise shunt regulator, a precision bandgap reference, a P-channel MOSFET, and an error amplifier with a voltage-error amplifier in the feedback loop. The error amplifier is used to control the output voltage, while the MOSFET is used to achieve the current necessary to maintain the output voltage. The device also includes a voltage sensing circuit to measure the output voltage, along with a general control circuit that handles various accuracy requirements.The NCP662SQ28T1 is designed to provide an adjustable output voltage range of 0.75V to 3.6V. It is capable of providing a maximum output current of up to 200mA and a maximum power dissipation of up to 1.7W. The high accuracy of NCP662SQ28T1 makes it suitable for battery-operated devices requiring low current and low noise output voltages.The NCP662SQ28T1’s excellent static characteristics make it a reliable choice in many applications. These static characteristics include PSRR (power supply rejection ratio) of 110dB, ground leakage current of 0.2 μA maximum at rated output voltage, input voltage depletion of 2.0V and output voltage drift of 0.1mV/°C. These characteristics help to reduce extraneous noise and ensure stability of the device.In order to operate the NCP662SQ28T1, an input bias current of 50μA is required. This bias current helps to ensure the effectiveness of the error-amplifier current in order to maintain the output voltage. This current is provided by the P-MOSFET as well as an external first-order filter, which is mandatory in applications requiring low-noise and low-output ripple.Overall, the NCP662SQ28T1 is an excellent linear voltage regulator for low power and low noise applications such as televisions, video players, audio system controllers, portable electronic devices, automotive and industrial equipment. It features a high ESD rating and low dropout voltage, ensuring stable regulation at low voltage and low current levels, along with excellent static characteristics. The device comes in a thermally enhanced 3-Pin SOT-23 package.

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