Tdk lambda single output dcdc converter pxa15 series tdk lambda pxa 15 48ws 3p3 the tdk lambda pxa15 48ws3p3 is a 41 input dc dc converter from the pax15 series this single output converter is widely used in a comprehensive range of commercial and domestic products such as telecomdatcom process control wireless network measurement and test applications this surface mount converter is compact and efficient and offers an input voltage of 18 75v dc and an output voltage of 33v tdk