With external resistor programming that enables a single part number to provide output voltages from 0.75 V dc to 5.5 V dc, Astec Power's 75-W APC18 surface-mount point-of-load (POL) dc-dc converters downconvert from 10 to 14 V on the intermediate bus and provide up to 18 A of regulated power with efficiency as high as 92%. Priced from $11.50 in OEM quantities, samples are available now.