REG102GA-3G4

Current - Output:	250mA
Base Part Number:	REG102-3
Supplier Device Package:	SOT-223-6
Package / Case:	SOT-223-6
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):	800µA
Current - Quiescent (Iq):	500µA
Series:	--
Voltage Dropout (Max):	0.27V @ 250mA
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:	Tube

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The REG102GA-3G4 is a linear low dropout regulator (LDO), with current and thermal protection. It is a three-terminal adjustable positive voltage regulator that can provide adjustable voltage limit and output current from 1mA to 100mAA. Suitable for single-cell or multiple-cell batteries, it is designed for use in a wide variety of power management applications. The REG102GA-3G4 is a voltage regulator that is designed to provide a stable and precise output voltage from a reference voltage. It has the ability to provide a drop-out voltage at a relatively low level. It is designed to have a low quiescent current of 100uA and can be set to operate in a wide range of currents. The output voltage can be adjusted using a feedback loop with a low input current and a voltage divider. The device has a regulated current capability with a maximum of 100mA. It provides a noise rejection of 65dB and a power supply rejection ratio of 65 dB. The operating temperature range is -40°C to +85°C. It is offered in the SOT-23-5 package. The REG102GA-3G4 has a wide range of applications across a variety of industries. This includes mobile power management, hand-held and portable audio/video devices, digital cameras and other multimedia devices, automotive systems, personal electronics and computer peripherals, among others. The working principle of this device is based on the linear regulation concept. The feedback loop allows precise regulation of the output voltage. The device consists of two sections: a voltage reference and an error amplifier. The voltage reference section provides a stable reference voltage, which is then compared to the actual measured output voltage. The difference between these two voltages is the error signal, which is amplified by the error amplifier. This amplified signal is then used to control the switch (transistor) in order to regulate the output voltage. The input voltage is applied to the input of the regulator which is controlled by a series of resistors. This voltage is then compared to an internal reference voltage and the amplifiers feedback loop determines the voltage drop-off. The voltage is then regulated by driving the transistor, which controls the current flow across the device. Overall, the REG102GA-3G4 is a linear low dropout voltage regulator, offering stable and precise voltage regulation with a wide range of current output levels. It is suitable for a range of applications, and provides excellent noise and power supply rejection.

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