MAX17290EUBB+

Series:	--
Part Status:	Active
Function:	Step-Up
Output Configuration:	Positive
Topology:	Boost
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	4.5V
Voltage - Input (Max):	36V
Voltage - Output (Min/Fixed):	5V
Voltage - Output (Max):	--
Current - Output:	1A
Frequency - Switching:	100kHz ~ 1MHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 85°C (TA)

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MAX17290EUBB+ Application Field And Working Principle

The MAX17290EUBB+ is an efficient, low cost DC-DC synchronous buck-boost voltage regulator, designed for various application fields. It is capable of operating from input voltages below, equal to, and above its output voltage, making the part suitable for a variety of applications including embedded systems, instrumentation and motor control.To understand the working principle of the MAX17290EUBB+, it is important to have an understanding of the basics of synchronous power conversion. In a simple buck converter, a switch is used to control the amount of current that flows through an inductor. At its simplest level, when the switch is turned on, current can flow through the inductor, allowing it to increase in value. When the switch is turned off, current can no longer flow and the inductor\'s current tries to stay constant, pushing the voltage across it to the input voltage. This initial voltage regulation step is the building block to the design of the MAX17290EUBB+ synchronous buck-boost voltage regulator.The MAX17290EUBB+ synchronous buck-boost voltage regulator uses a two switch synchronous buck-boost converter to allow for efficient operation in both buck and boost modes. In buck mode, one switch is used to regulate the output voltage, while the other is used to limit the current in the inductor. In boost mode, both transistors are used to regulate the output voltage. The two transistors are switched on and off in phase to create a zero voltage switching situation and achieve high efficiency in both buck and boost modes. This is different from the traditional synchronous buck-boost voltage regulators, which only utilize one switch and require the switch to go to a low impedance state for energy storage operations.The MAX17290EUBB+ voltage regulator is capable of operating from input voltages below, equal to, and above its output voltage, making it suitable for a variety of applications including embedded systems, instrumentation and motor control. Additionally, the MAX17290EUBB+ can be used in isolated offline power systems thanks to its high efficiency, low component count, and low solution cost.In addition to its voltage regulation capabilities, the MAX17290EUBB+ supports a range of protection features including UVLO, overcurrent protection and thermal shutdown. These features offer protection in the event of an overload or an over temperature condition, allowing the regulator to operate safely and reliably in many different application spaces.Overall, the MAX17290EUBB+ synchronous buck-boost voltage regulator is an efficient, low cost solution for applications requiring high performance operation, featuring a wide input voltage range, high output power, small solution size and low component count, as well as practical protection features. It is well suited for a variety of applications including embedded systems, instrumentation and motor control.

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