Demonstration circuit DC1041A-A features the LTM4601EV, the high efficiency, high density switch mode step-down power module. The input voltage range is from 4.5V to 20V. The output voltage is programmable from 0.6V to 5V, refer to step down ratio curve in the LTM4601 datasheet. The rated load current is 12A, while de-rating is necessary for certain VIN, VOUT, and thermal conditions. Integrated input and output filters enable a simple PCB layout. Only bulk input and output capacitors are needed externally. An internal phase-lock loop allows the Module to be synchronized to an external clock. The LTM4601 allows the user to program output ramp-up and ramp-down through the TRACK/SS pin. The output can be set to coincidentally or ratiometrically track with another supplyís output. Margining function is provided for the user who wants to stress their system by varying supply voltages during testing; refer to datasheet for functional diagram.