REG101NA-3/3KG4

Current - Output:	100mA
Base Part Number:	REG101-3
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	65dB (120Hz)
Current - Supply (Max):	650µA
Current - Quiescent (Iq):	500µA
Series:	--
Voltage Dropout (Max):	0.13V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
The REG101NA-3/3KG4 is a voltage regulator designed for use in a wide range of applications. It is a linear voltage regulator, referred to as an LDO (Low Drop Out) regulator, with a wide input voltage range, low dropout voltage, and low power consumption. It serves as an efficient and cost-effective way to regulate the output voltage of an electronic system.

Application Field
The REG101NA-3/3KG4 can be used in a wide range of applications. It is ideal for providing power to low-power applications, such as DSPs, FPGAs, processors, and small electronic systems. It can also be used in automotive, industrial, and medical equipment. The regulator\'s wide input voltage range allows it to be used in applications where the input voltage can vary, such as in motor controls or in mobile applications. Additionally, because of its high efficiency and low power consumption, it is suitable for a wide range of automation, communication, and power management applications.
The REG101NA-3/3KG4 can also be used to provide power to an isolated power supply, such as an AC/DC power adapter. Its low dropout voltage makes it ideal for providing stable output voltage even in high voltage applications. Furthermore, its wide temperature range makes it suitable for use in a variety of harsh environments.

Working Principle
The REG101NA-3/3KG4 is a linear voltage regulator. That means it uses linear regulation to control the output voltage. Linear regulation is a process of controlling the output voltage by using an external sensing circuit, such as a voltage divider, to sense the output voltage, and then using negative feedback to adjust the output voltage to the desired level. This is done by controlling a transistor or MOSFET (depending on the regulator) in order to regulate the current flowing through the transistor or MOSFET. This current will then be regulated to provide the desired output voltage.The REG101NA-3/3KG4 also uses an internal feedback circuitry, as well as low dropout (LDO) technology, to ensure that the output voltage stays within the specified range. The combination of these technologies allows the REG101NA-3/3KG4 to provide a stable and efficient output voltage regardless of varying input voltages or changing load current. Additionally, the REG101NA-3/3KG4 has a wide temperature range and high transient response, making it suitable for a variety of applications.

Conclusion
The REG101NA-3/3KG4 is a linear voltage regulator that is suitable for a range of applications, from low-power applications to high voltage automation systems. Its low dropout voltage combined with wide temperature range and high transient response make it a reliable and efficient voltage regulator. Furthermore, its wide input voltage range allows it to be used in applications where the input voltage can vary. All in all, the REG101NA-3/3KG4 is an ideal choice for a wide range of voltage regulation applications.

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