Demonstration circuit 1889A features the LTM4624EY μModule regulator, a tiny high performance high efficiency step-down regulator. The LTM4624EY has an operating input voltage range of 4V to 14V and is able to provide an output current of up to 4A. The output voltage is programmable from 0.6V to 5V. The LTM4624EY is a complete DC-DC point of load regulator in a thermally enhanced 6.25mm × 6.25mm × 5.01mm BGA package requiring only a few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail sequencing. The LTM4624 datasheet must be read in conjunction with this demo manual for working on or modifying demo circuit 1889A.