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Automotive-grade, 1.2A step-down converter meets tight OEM power budgets

Automotive-grade,

Maxim Integrated Products introduces the MAX16975* automotive-grade, 1.2A step-down converter optimized for operation over a 3.5V to 28V range. To accommodate extreme battery voltage variations in automotive applications, the device tolerates load-dump transients up to 42V and cold-crank excursions down to 3.5V.

It can operate in dropout by turning on the integrated 300mΩ high-side FET for the duration of cold-crank or start/stop events. The wide input supply range, combined with an ultra-low quiescent current (45µA, no load), makes the MAX16975 ideal for automotive applications that have tight power budgets.

The MAX16975 features a resistor-programmable switching frequency (220kHz to 1MHz) that can be tuned to suit the demands of the application. It can also be synchronized to an external clock.Additional features include an open-drain power-good output with adjustable reset threshold and delay timer, as well as protection features such as cycle-by-cycle current limiting, thermal shutdown, and overvoltage protection.

The MAX16975 is AEC-Q100 (Grade 1) qualified and fully specified over the -40ºC to +125ºC automotive temperature range; it is packaged in a thermally enhanced, 16-pin QSOP. Pricing starts at $2.36 (1000-up, FOB USA).

MAXIM
 

2010111612 / 19.11.2010 / Components / Maxim Integrated


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