Low dropout linear regulator produces from 3-5V to give uninterrupted power during cold-crank conditions in cars

Bush, Steve
January 2007
Electronics Weekly;1/24/2007, Issue 2272, p7
Trade Publication
The article reports that a low-dropout linear regulator for cars that produces 5V at 250mA from a 3.5 to 72V input has been announced by Maxim. The secret of the MAX5092B's wide input range is a switching boost pre-regulator that cuts in automatically when the input voltage drops below the intended output. According to the firm, this wide operating-input-voltage range allows for true buck-boost operation and provides uninterrupted power during key-off, cold-crank, and load-dump conditions.


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