FAN2559MP18X

Current - Output:	180mA
Base Part Number:	FAN2559
Supplier Device Package:	6-MLP (2x2)
Package / Case:	6-VDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power Good
PSRR:	50dB (100kHz)
Current - Quiescent (Iq):	150µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The FAN2559MP18X is a voltage regulator integrated circuit (IC) from Fairchild\'s family of Linear Voltage Regulators. Utilizing a simple 3-terminal configuration, the FAN2559MP18X can source current up to 1.0A with a voltage drop from input to output of up to 2.6V at up to 1.8A. It includes several protection features such as output over-current protection and over-temperature shutdown which give it excellent overall stability for applications requiring reliable and precise voltage regulation.

Features

The FAN2559MP18X linear regulator offers several features that make it ideal for a wide array of applications, making it an excellent choice for voltage regulation and power supply needs:- Wide Input Voltage Range: The IC can handle input voltages between 5.0V and 18V - Low Dropout Voltage: The FAN2559MP18X has a low dropout voltage of 2.6V, making it highly efficient even with large current loads.- Stability: The IC is designed to be highly stable and provide precise regulation over a wide temperature range.- Overload Protection: It includes overcurrent protection and over-temperature shutdown to protect against overload.

Application Field

The FAN2559MP18X is an ideal choice for use in applications requiring precise voltage regulation. It is well suited for use in a variety of consumer electronics, automotive and industrial applications. Some of the most common use cases for the FAN2559MP18X include:- Battery Chargers: The low dropout voltage of the FAN2559MP18X makes it ideal for use in battery chargers to provide highly efficient voltage regulation.- Motor Controls: Applications requiring precise motor control and regulation benefit from the superior stability and overload protection of the FAN2559MP18X.- Data Acquisition Systems: The precise voltage regulation of the FAN2559MP18X ensures that data is accurately acquired and processed in data acquisition systems.- Power Supplies: The wide input voltage range and low dropout voltage of the FAN2559MP18X make it ideal for use in power supplies and other power applications.

Working Principle

The FAN2559MP18X utilizes a three-terminal configuration to provide precise voltage regulation. It includes an internal error amplifier, compensate circuitry, and a minimum number of external components, allowing for simplified design and reduced board space.The IC continuously monitors the output voltage, comparing it to a reference voltage and adjusting the output voltage according to the error amplifier. If the output voltage is lower than the reference voltage, the error amplifier will increase the gate-source voltage of the power FET, allowing more current to flow and thus increasing the output voltage. Conversely, if the output voltage is higher than the reference voltage, the gate-source voltage of the FET will be reduced, thus reducing the output voltage. This process continues until the output voltage matches the reference voltage, providing precise regulation.The FAN2559MP18X also features overload protection and over-temperature shutdown, ensuring that the IC will not be damaged in the event of an overload or over-temperature situation.

Conclusion

The FAN2559MP18X is an ideal solution for applications requiring precise voltage regulation. It features a wide input voltage range, low dropout voltage, and built-in protection features, making it an excellent choice for a variety of power supply and voltage regulation applications. Whether it’s used for battery chargers, motor controls, data acquisition systems, or power supplies, the FAN2559MP18X linear regulator can provide the stable and precise voltage regulation that your application requires.

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