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):	6.425V
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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FAN2508SX Application Field and Working Principle

Introduction

The FAN2508SX is a highly efficient low dropout linear regulator. It is designed to provide constant and stable output current for a wide variety of power management electronics, such as notebook computers and handheld portable devices. This device is part of the PMIC - Voltage Regulators - Linear range, with the capability to accurately and reliably regulate the output voltage over the operating temperature range of -40° to +85°.

Features

The FAN2508SX has a few key features which set it apart from other PMIC devices. These includes:

• Low Dropout Voltage: The FAN2508SX boasts a maximum dropout voltage of just 0.3V, making it very efficient at converting input power into output power. This low dropout voltage ensures that the device remains stable and reliable at all times.
• Low Quiescent Current: The FAN2508SX operates with a quiescent current of only 2.5uA when operating in active mode. This very low quiescent current ensures high efficiency, as well as low energy consumption.
• High Accuracy: The device offers a guaranteed accuracy of ± 1% with a ± 5% operating temperature range. This ensures that the output voltage of the device remains stable and within the operating specifications.

Applications

The FAN2508SX is ideal for a wide range of power management electronics, including:

• Notebook computers
• Smartphones and tablets
• Digital cameras and camcorders
• Portable gaming devices
• Portable media players
• Portable medical and analytical equipment
• Industrial control and automation systems

Working Principle

The FAN2508SX is a low dropout linear regulator. It works by using an internal reference voltage to control an output transistor. When the input voltage is applied, the output voltage will match the reference voltage. The output transistor provides the necessary current to regulate the output voltage.The FAN2508SX uses a series of feedback networks to ensure accurate regulation of the output voltage. These feedback networks monitor the output voltage and adjust the transistor\'s current accordingly. This ensures that the output voltage remains within the operating specifications.

Conclusion

The FAN2508SX is a highly efficient, low dropout linear regulator designed for a wide variety of application in power management electronics. It offers low dropout voltage, low quiescent current and high accuracy, making it an ideal choice for notebook computers, smartphones, tablets, digital cameras and other portable devices. The device is designed to provide constant and stable output current, and its feedback networks ensure that it accurately and reliably regulates the output voltage.

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