DC/DC regulator excels through ultra-low Iq

DC/DC regulator excels through ultra-low Iq

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By Christoph Hammerschmidt

The product is capable of wide switching frequency up to 2.4 MHz to avoid critical “keep out” zones (e.g., the AM band), as well as frequency dithering and slew rate control to minimise switching noise. It also offers unique “dithering-on-sync” CLKOUT, which can be used for other switching converters in the system.

The ARG81800 DC/DC regulator draws just 8 μA, from VIN while regulating 3.3V or 5.0 Vout at no load. In comparison to the typical ~100uA budgeted for automotive battery-powered subsystems, this low Iq solution frees up significant overhead to be allocated to other current draws that may occur in the system, allowing more design margin.

The ARG81800 is supplied in a low profile 20-pin wettable flank QFN package with exposed power pad.

More information: ARG81800 DC/DC regulator

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