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I have a pic based device with an rtc inside. This device is powered by a piece of LR44 (1.5volt). As the rtc minimum operating voltage is 2.7 volt, I am thinking of using a dc/dc converter to power it. The whole board's quiescent current at 3 volt is 4uA without the dc/dc converter. But after I added in the max1724 dc/dc converter to power the whole board (it claims to have 1.5uA quiescent current), it is around 25uA, which is a lot to me. Anyone have come accross a better converter? Or any other ideas?