DIO6022CS8 Dioo

Rev 1.1 DDIO60222 HHigh-Efficiency 1MHHz,2A OOutputt Synchhronouus Stepp Downn CConverrter FFeatures Deescriptions zz Low R for interrnal switchees (top/bottoom) Thee DIO60222 is a high-efficieency 1MHHz DSS(ON) synnchronous step-downn DC-DC rregulator IIC 130m//100m, 2AA zz 2.7-5.5VV input voltaage range cappable of deliivering up too 2A outputt current. Thhe zz 1MHz swwitching frequency minnimizes the DIOO6022 operrates over a wide innput voltagge externall componennts rannging from 2.7V to 5..5V and inttegrate maiin zz Internal soft-start limits the inrrush currentt swiitch and syynchronouss switch with very low zz 100% drropout operration capabbility with input R to minimmize the connduction losss. DSS(ON) voltage up to 5V zz Output ppower goodd indicator Loww output vvoltage rippple and smmall external zz RoHS coompliant annd Halogen ffree indductor and capacitor ssizes are acchieved witth zz Compacct and thermmally enhancced SOIC-8 1MHz switchinng frequenccy. The integgrated poweer packagee goood indicatorr provides thhe system reset functioon andd facilitates the output ssequencingg design. AApplications Fuunction Block zz LCD TV VINN zz Set Top Box zz Net PC Internal Input UVLO Power 2.7V zz Mini-Nottebook PC Current Sense zz Access Point Routere EN PPWM Control & 1.5V Protect Logic FB 0.6V LX 0.54V Thermal Protection PG GND OOrdering Informmation Order Parrt Top Marking TT Package A Number DDIO6022CS8 DIO6022 RoHS -40 to +85C SOIC8 Tape && Reel, 2500 wwww.dioo.com 2015 DIOO MICROCIRCUUITS CO., LTDD DIOO6022 Rev. 11.1 High-Efficiency 1MHz,2A Output Synchronous Step Down Converter DDIO60222 PPin Assignmennts NC 1 8 PG IN 2 7 EN LX 3 6 NC GNDD 4 5 FB SOIC8 FFigure 1 Pinn Assignmennt (Top Vieww) PPin Defiinitions Pin NName Descriptionn NC No Connect INN Power Input LXX Inductor pin. Connect this ppin to the switcching node of innductor. GNND Ground Output Feeddback Pin. Connect this pin too the center poiint of the outpuut resistor divider FB (as shown inn Figure 1) to program the outtput voltage: Vout=0.6*(1+R11/R2). EN Enable contrrol. Pull high too turn on. Do noot float. Power good indicator. Wheen the output vooltage exceedss 90% of regulaation point, PGG it becomes oopen drain loww otherwise. wwww.dioo.com 2015 DIOO MICROCIRCUUITS CO., LTDD DIOO6022 Rev. 11.1