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Micrel Launches 2.5 MHz Synchronous Buck Regulator
(Top News, 22 Aug 2007 )
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Micrel Inc. has launched the MIC2238, a 2.5MHz dual 800mA synchronous buck (step-down) regulator housed in a tiny 3mm x 3mm MLF(R) package.
Contained in 3 x 3 mm MLF package, the MIC2238 2.5 MHz dual 800 mA synchronous buck step-down regulator features Trickle Mode enabling light load efficiency for Li-Ion battery powered systems. Device offers input voltage range from 2.5-5.5 V and ultra-low quiescent current of 28 µA at light loads. Operation modes include Variable frequency Trickle Mode operation for highest light load efficiency and option for running device at constant frequency.
In addition, the device offers a power good output signal for sequencing capability. The MIC2238 is available in a tiny 12-pin 3mm x 3mm MLF with a junction operating range from 40 degrees C to +125 degrees C.
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