MAX8875EUK30+T Integrated Circuits (ICs)

Current - Output:	150mA
Base Part Number:	MAX8875
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Temperature, Reverse Polarity, Short Circuit
Control Features:	Enable, Power Good
PSRR:	60dB (100Hz)
Current - Quiescent (Iq):	180µA
Series:	--
Voltage Dropout (Max):	0.165V @ 150mA (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to MAX8875EUK30+T

The MAX8875EUK30+T is a low-dropout (LDO) linear regulator that is designed to deliver up to 3A output current with very low dropout voltage. The regulator can enable improved accuracy, improved system margin and superior power supply performance with high-speed transient response. It is available in a surface-mount package and has a wide range of operating temperature range of -40 °C to +125 °C.The MAX8875EUK30+T offers several features that provide superior power supply performance including on-chip input and output passive components, adjustable output voltage, logic enable function, low shutdown current and fast transient response. The regulator also features tight output voltage regulation, small footprint, low noise operation, over current protection and overtemperature protection.

Application Fields

The MAX8875EUK30+T can be used in a variety of applications such as portable products, battery powered devices, automotive and multi-rail applications. The device is designed to handle fast load transients, so it can be used to regulate energy saving devices and applications that require high accuracy of current. The device is suitable for a wide variety of applications, as it can deliver a stable supply voltage with minimum dropout voltage and very fast transient response. It can provide a stable and reliable output voltage for active components, consumer electronics and data-communications products.

Working Principle

The MAX8875EUK30+T is a low dropout linear regulator which works by a process called \'linear voltage drop\'. The regulator takes the input voltage and drops the voltage across a resistor to a one point, which is governed by the output voltage of the regulator. The device features a P-channel MOSFET as a pass device between the input power supply and output power supply. The output voltage of the regulator is controlled by an external resistor divider network that controls the gate voltage of the P-channel MOSFET. The MOSFET is connected between the output voltage and the ground and is switched on or off according to the input voltage level.The MOSFET is turned on when the voltage across it is smaller than the input voltage. When this occurs, current flows from the input source to the output source and the output voltage is regulated at the desired level. By controlling the gate voltage, the pass device conducts more or less current, thereby regulating the output voltage.

Conclusion

The MAX8875EUK30+T is a low-dropout linear regulator that is designed to provide superior performance for a wide variety of application requirements. The device offers improved accuracy, improved system margin and superior power supply performance with high-speed transient response. The device features adjustable output voltage, logic enable function, low shutdown current and fast response, and is suitable for a variety of applications including portable products, battery powered devices, automotive and multi-rail applications. The device works by a process called linear voltage drop and features a P-channel MOSFET as a pass device between the input and output power supplies.

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