If you'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 yo

If you'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). The datasheet (at http://www.semtech.com/images/datasheet/sc189.pdf http://www.semtech.com/images/datasheet/sc189.pdf) has several example circuits.