MAX1806EUA08+

Current - Output:	500mA
Base Part Number:	MAX1806
Supplier Device Package:	8-uMax-EP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable, Power Good
PSRR:	--
Current - Quiescent (Iq):	400µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	4.5V
Voltage - Output (Min/Fixed):	0.8V (0.8V)
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Adjustable (Fixed)
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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IntroductionThe MAX1806EUA08+ is a single-chip, multi-function linear voltage regulator that provides system level fault management. Its fully-integrated design reduces component count and increases system reliability. The MAX1806EUA08+ features a power supply requirement range of 1.8V to 5.5V, adjustable output voltage range of 0.725V to 5.5V, operating temperatures range from -40°C to +85°C and low current limit of 4 mA. The MAX1806EUA08+ ensures a smooth transition from one line rail to another by controlling the regulated current through an integrated control loop, thus allowing a system to reliably power a variety of components under varying conditions. Application FieldThe MAX1806EUA08+ is optimized for applications with high dynamic load requirements, such as Li-Ion, NiMH, NiCd, and Alkaline cell powered devices, where I2 C/SMBus serial control and linear performance are needed. It is well suited for a broad range of consumer, industrial and automotive applications including audio, cell phones, digital cameras, LCDs, laptop, tablets, power management, and general industrial applications. What’s more, the MAX1806EUA08+ can also be used in vehicle systems, such as automotive instrument clusters, infotainment, advanced entertainment systems, and communications systems, to ensure a reliable flow of power and voltage. With its low current limit protection, system designers can be sure that the MAX1806EUA08+ can provide a safe and reliable power management solution. Working PrincipleThe MAX1806EUA08+ operates in a typical linear mode and uses an integrated current limit circuit and a high precision reference to precisely regulate the output voltage. In linear regulation, a small DC voltage is applied to the external loop that feeds the pass element to adjust its output voltage. The MAX1806EUA08+\'s integrated loop control circuit helps to reduce overall component count.When the MAX1806EUA08+ is used in a system, a battery or power supply is connected to the device’s input. The voltage at the input is regulated using a low-dropout internal regulator. This provides a stable and efficient power conversion process.The integrated current limiting ensures safety by limiting the maximum current through the output. The current limiting can either be set externally or internally, depending on the application. By utilizing the device’s internal current limit, the overall component count of the system is further reduced. The MAX1806EUA08+ uses Advanced Power Management (APM) to ensure optimal performance. This feature works by monitoring the output voltage, current and temperature of the device and automatically adjusts the power delivery to ensure a smooth performance. In addition, the device can be used for I2 C/SMBus communications and programmed to work in various environments.ConclusionThe MAX1806EUA08+ is a single-chip, multi-function linear voltage regulator that provides system level fault management and is well-suited for the demanding needs of many current consumer, industrial and automotive applications. Its advanced features, such as low current limit protection and Advanced Power Management, make it a reliable power management solution that can be used in a variety of environments.

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