hi pawan, http://www.powerint.com/en/products/product-documents/product-selector-guide check this link to get product selector guide

Thanks Prasun, Actually I am looking the input/output voltage and power limits where PI device can be used directly or with the help of other device to enhance the range. For example DPA converter can be used from 36 V to 75 V DC input and to get 100 W in Buck mode only. I am looking for some unconventional application, while all documents describe only the popular applications. Regards Pavan

There is no document I can point you to. Typically there are 2 limiting factors for power delivery 1 - electrically can the device deliver the power... (process the power) For buck or other non-isolated converters the current limit will determine how much output current you can deliver. Voltage is usually not the limiting factor... 2 - More importantly thermal considerations. Temperature rise within the device will ultimately limits its capability to process power. Usually its this factor that limits the power throughput of a device.