FAN2518S25X

Current - Output:	50mA
Base Part Number:	FAN2518
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):	2.5V
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Part Status:	Obsolete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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Introduction of FAN2518S25X

FAN2518S25X is a high-performance, low-dropout (LDO) linear voltage regulator that helps design engineers deliver the precise power and performance demanded in a wide range of advanced portable and embedded applications, such as USB and PCI Express. The regulator is designed to deliver up to 2500000 µA of output current, a very low dropout of only 0.022 V, and an exceptionally low 5 mA of quiescent current (QC). Its enhanced performance allows the FAN2518S25X to take best advantage of the higher efficiency designs of today’s mobile portable power sources.

Features of FAN2518S25X

FAN2518S25X delivers a low dropout voltage of 0.022 V and current ripple of 0.4 mV, making it ideal for powering devices requiring highly precise power regulation. Low dropout (LDO) voltage regulators act as a buffer between a voltage supply and the load, ensuring that the fixed output voltage remains constant. The device is designed with the industry\'s best transient response and supports dual output ranges from 0.5 to 6.5 V and from 1 to 6.5 V at 2500000 µA and 1500000 µA, respectively. This capability idea for devices that require precision voltage regulation, since it eliminates the need for an external switching regulator. The FAN2518S25X’s feature set includes an adjustable 3.2 V minimum output voltage, programmable current and power limit, fast transient response, and over-temperature and over-current protection. A programmable controlled soft-start feature helps reduce in-rush current that can increase power dissipation and cause hot spots on the component or trace. With its low-dropout operation and tight line and load regulation, the FAN2518S25X helps engineers to optimize their designs for battery life and portability. The FAN2518S25X devices are well-suited for portable applications and products requiring voltage regulation in devices where current consumption is not a factor. By consuming less than 5 mA, it allows external batteries to last longer than if it had used a traditional stepdown DC/DC converter. It eliminates the need for bulky DC/DC converters and their associated circuitry, such as heat sinks and other components. Moreover, due to the low solution footprint and small part size, the FAN2518S25X can help engineers to eliminate large and expensive printed circuit boards.

Application Field and Working Principle of FAN2518S25X

FAN2518S25X is widely used in various application spaces, e.g. industrial and consumer electronics, communication equipment, consumer appliances, and battery-powered portables. Typical applications include post-regulators, analog-to-digital convertors (ADCs) and digital-to-analog convertors (DACs), base band and RF transceivers in mobile phones, cellular base stations, and laptop personally computers.The FAN2518S25X operates using a low dropout voltage of 0.022V and provides a controlled soft-start output feature. It ensures a stable output power supply that is free from noise and load-related changes. With its high accuracy voltage regulation feature, the FAN2518S25X delivers a stable voltage output and low output noise. The device is also designed to offer great transient response, fast load and line regulation, fast input rising time and low output current noise. It has over-temperature protection that shuts off the output voltage when the junction temperature reaches a preset value, preventing damage to the device.The FAN2518S25X is managed by a reverse-current protection toggle pin, which enables the device to comply with safety standards, particularly in the consumer products sector. Additionally, the device offers EMIRESET, an automated reset feature that provides fast recovery times and helps enhance system-level performance. The reset pin also detects over-currents, temperatures and input voltage faults, reducing the need for manual fault detection and repair. Overall, the FAN2518S25X is the ideal choice for applications that demand high performance and low power consumption. Its high output accuracy and precision voltage regulation, combined with its power-saving features and protection circuitry, make it an excellent solution for a wide range of applications.

Conclusion

This article has presented an overview of the FAN2518S25X and discussed its features and applications. The FAN2518S25X offers advantages including low dropout voltage, precision voltage regulation and a controlled soft-start output feature. It is designed to provide high performance with ultra-low power consumption, making it suitable for a wide range of applications. The device is also designed with an innovative reverse-current protection toggle pin that enables it to comply with safety standards.

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