If you&#x27;re interested in a higher-power version, I just used the SC189 3.3V switching power supply in a design of ours. It can supply 1.5A (provided of course your upstream power can too).<p>The datasheet (at <a href="http:&#x2F;&#x2F;www.semtech.com&#x2F;images&#x2F;datasheet&#x2F;sc189.pdf" rel="nofollow">http:&#x2F;&#x2F;www.semtech.com&#x2F;images&#x2F;datasheet&#x2F;sc189.pdf</a>) has several example circuits.