MAX20075ATCA/V+T

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MAX20075ATCA/V+T is a Switch Mode DC-DC Voltage Regulator designed for Automotive, Communication and Computing applications. It features 3-2 phase buck converter that provides up to 6.25A of output current. The device can operate from 4V to 6V input voltage, with a maximum output voltage of 4.2V. The MAX20075ATCA/V+T has integral linear voltage regulator with current source feedback and compensation to optimize output voltage accuracy. The built-in driver circuitry gives low-ripple, high efficiency operation by reducing inductor & capacitor size. The output voltage is monitored within ±1.5% accuracy over line and load.

The main application fields of MAX20075ATCA/V+T includes Computing and Communication Systems, Automotive, and other electronic systems that need a reliable power solution. It is suitable for notebooks, netbooks, desktop PCs, game consoles, and automotive applications. Additionally, it can also be used in other systems that require stable voltage supply, such as security and surveillance systems, medical equipment, and portable devices.

Working Principle

The MAX20075ATCA/V+T operates by switching on and off the inductor and capacitor in order to regulate the voltage in the output circuit. To get high efficiency, the switch is usually conducted at high frequency, usually around 500 kHz. The output voltage is set with a set of resistors and capacitors, connected to an internal op-amp to provide voltage feedback. The integrated linear voltage regulator increases the system accuracy, while the digital current source feedback compensates for line and load variations, and minimizes output voltage droop. The output voltage can be adjusted with a single resistor. The internal oscillator enables to control the switching frequency by setting a resistance and capacitor.

The MAX20075ATCA/V+T is optimized for low cost, low component count, high efficiency, and high reliability. It has output current limiting and short-circuit protection, as well as over-temperature protection. Additionally, it also integrates thermal shutdown protection and overvoltage protection, which will shut down the output voltage if the input voltage is over the safe limit. The compact form factor and low profile enable easy design-in and mounting. The MAX20075ATCA/V+T is RoHS-compliant, Halogen-Free and back-flow compatible, making it compliant to most industrial reliability requirements.

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