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Micrel switch regulator offers low input, output ripple

Posted: 02 Aug 2004 ?? ?Print Version ?Bookmark and Share

Keywords:micrel semiconductor? mic2295? switching regulator?

Micrel Semiconductor has released a 1.2MHz, PWM dc-dc boost switching regulator with a 2.5V to 10V input voltage range, high efficiency, low input and output ripple, and <1mA shutdown current.

The MIC2295 achieves high power density through its internal 34V/1.2A switch that allows it to power large loads in a tiny footprint. The newly-released switching regulator implements constant frequency 1.2MHz PWM current mode control, and offers internal compensation that offers excellent transient response and output regulation performance. According to the company, the high frequency operation saves board space by allowing small, low-profile external components. The fixed frequency PWM scheme also reduces spurious switching noise and ripple to the input power source.

With an operating junction temperature range of -40C to 125C, the MIC2295 is available in a Thin SOT23 5-lead package and a 2-by-2mm 8-lead MLF leadless package. The 2-by-2mm MLF package option has an output overvoltage protection feature.

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