FAN2508S285X

Current - Output:	50mA
Base Part Number:	FAN2508
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature
Control Features:	Enable
PSRR:	43dB (120Hz)
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.075V @ 50mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.85V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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FAN2508S285X is an ultra low dropout (LDO) linear voltage regulator from Fairchild Semiconductor (FSC). It is a small width, low quiescent current device that offers exceptionally high accuracy and reliability, making it suitable for a wide range of applications such as computing, communication, instrumentation and automotive.The FAN2508S285X integrates advanced control and protection circuits to provide robust and stable system functionality. It offers output voltage range between 1.5V and 12V with a dropout voltage of typically 0.45V at full load current. The device operates in an adjustable or fixed-output voltage mode and can provide up to 1.35A at an ambient temperature of 85°C. The excellent power supply ripple rejection of the FAN2508S285X makes it an ideal choice for noise-sensitive applications.The FAN2508S285X also has reverse battery protection, load regulation and thermal protection to protect the system against over current and over temperature conditions. The device is offered in a surface mount DPAK package which makes it suitable for space-constrained applications and for applications which require low-profile package.The FAN2508S285X operates from a wide input voltage range from 2.5V to 12.6V and has excellent load characteristics across all load ranges. The device also has a shutdown current of 0.005µA, making it suitable for portable battery operated applications.The FAN2508S285X is designed to be a low-cost and robust voltage regulator system with an output voltage accuracy of 1.5%. It also has a high-accuracy reference voltage of 1.2V, making it suitable for applications requiring high-accuracy voltage regulation.The FAN2508S285X works on the linear voltage regulator principle, where the output voltage is varied using a feedback loop. The device consists of an input voltage source, feedback loop, a reference voltage source, a control transistor, a current source and an output voltage regulator. The input voltage is applied to the feedback loop which is connected through a resistor to a reference voltage source. The output of the reference voltage source is fed back to the control transistor to vary the output voltage.The current source is used to control the conduction of the control transistor which allows the output voltage to be regulated. The output voltage regulator is used to compare the output voltage with the reference voltage, and adjust the current through the control transistor to keep the output voltage regulated at the set value. The FAN2508S285X has an internal power-on reset circuit that monitors the voltage drop and then drives the system into reset if the voltage drop is too large.The device is suitable for use in applications including notebook computers, switches, routers, and printer power supplies, as well as battery operated systems such as mobile phones and automotive electronics. The FAN2508S285X is an especially good choice for applications that require low dropout voltage, high accuracy, low noise, and low quiescent current.

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