TPS63900DSKR

TPS63900DSKR is the tape-and-reel WSON-10 ordering code for the Texas Instruments TPS63900 buck-boost converter, listed by TI as ACTIVE on the ordering page for this exact code. It accepts an input from 1.8 V to 5.5 V and sets its output between 1.8 V and 5 V in 100 mV steps (32 settings), draws a quiescent current of 75 nA typical and a shutdown current of 60 nA typical, limits switch current at 1.45 A typical, delivers over 400 mA at a 3.3 V output with the input at or above 2.0 V, and offers a programmable input current limit from 1 mA to 100 mA plus an unlimited setting. The selection point is battery-life engineering: nanoamp-class quiescent draw, a digitally set output and a programmable input limit suit coin-cell, energy-harvesting and USB-fed designs where the source itself needs protection. Selection advice: the output voltage is configured in 100 mV steps rather than by a feedback divider, so the DSKR code and its register configuration belong together in the design file - a like-footprint substitute with a divider-set output is not a configuration equivalent. Parameters verified against the TI TPS63900 datasheet SLVSET3 and the TI ordering page.