MAX1790EUA

Voltage - Output (Min/Fixed):	2.6V
Base Part Number:	MAX1790
Supplier Device Package:	8-uMAX
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	640kHz, 1.22MHz
Current - Output:	1.2A (Switch)
Voltage - Output (Max):	12V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.6V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, SEPIC
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Obsolete
Packaging:	Tube

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MAX1790EUA DC DC Switching RegulatorsThe MAX1790EUA is a DC DC Switching Regulators from the PMIC (Power Management Integrated Circuit) family, enabling devices to control and regulate the voltage output. It is specifically designed for applications where high efficiency and precise voltage output are required. With its low-profile SOT-23 package, the device is perfect for any IoT (Internet of Things), telecom and wireless application.The MAX1790EUA is a fixed 3A LDO (low dropout) regulator, designed to deliver up to 3A of current, over a wide voltage range (1.4V to 5.5V). It also has a built in Pass FET, allowing it to deliver a high power current of up to 4A, when needed. With its high efficiency and low operating temperature, the MAX1790EUA is one of the most reliable and power efficient switching regulators on the market.The MAX1790EUA also features a low quiescent current (Iq) of only 800μA. This enables the power source to be shut off without draining the battery, preserving power and extending the battery life. It also has an adjustable current limit of 0.3A to 3A, allowing users to choose the appropriate current limit for their application.With its wide temperature range (-25C to +85C) and accurate voltage output, the MAX1790EUA is an excellent choice for any application that requires precise, efficient and reliable voltage regulation.Working Principle To understand the working principle of the MAX1790EUA, it is important to understand the concept of buck and boost switch-mode converters. The MAX1790EUA employs a buck-type and a boost-type system to control and regulate the output voltage.The buck-type system uses a MOSFET switch to reduce the input voltage, while the boost-type system increases the input voltage. The MAX1790EUA uses both of these systems in a feedback loop to provide precise voltage regulation.The MAX1790EUA has two distinct control loops: a voltage loop and a current loop. The voltage loop is responsible for controlling the output voltage with a ±1.5% accuracy. The current loop is used to control the current limit and help prevent overloads.The MAX1790EUA also has a low voltage disconnect (LVD) feature, which can be enabled to shut off the device when the input voltage drops below a certain threshold. This helps to protect the system from any unwanted power outages.In addition, the MAX1790EUA features a Shut-Down mode, allowing users to shut down the device completely. This is useful for applications that require a very low power consumption.The MAX1790EUA is a very versatile and reliable voltage regulator, able to provide precise and efficient voltage regulation for a wide range of applications. It also has a low quiescent current, a low voltage disconnect and a shut down mode, making it one of the most versatile switching regulator on the market. The device\'s thermal performance is also excellent, with a wide operating temperature range (-25℃ to +85℃). This makes it ideal for applications that require a reliable and efficient voltage regulation solution.In conclusion, the MAX1790EUA is an excellent choice for any applications that require precise, reliable and efficient voltage regulation. With its low quiescent current, adjustable current limit and wide temperature range, it is sure to meet the demands of any application.

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