Linear Technology Corporationannounces the LT8494, a current-mode, fixed-frequency SEPIC/boost dc-dc converter with an internal 2A, 70V switch. Ultralow quiescent current of only 7µA makes the device suited for always-on automotive or other industrial battery-powered systems. The LT8494 starts up from an input voltage range of 2.5V to 32V and once running it operates from inputs from 1V to 60V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs.
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The LT8494 can be configured as a boost, SEPIC or flyback converter. Its switching frequency can be programmed via a single resistor between 250kHz and 1.5MHz, enabling designers to minimize external component sizes. The combination of a thermally enhanced TSSOP-20E or 4mm x 4mm QFN package and tiny externals ensures a very compact footprint while minimizing solution cost.
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The LT8494 is available in a thermally enhanced TSSOP-20 package. Pricing starts at $2.85 each for 1,000 piece quantities. Industrial temperature (-40 to 125 degrees C) and high temperature (-40 to 150 degrees C) grades are also available. All versions are available from stock.
source: http://www.powerpulse.net/story.php?storyID=32639
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