资 源 简 介
The RT9173D is a simple, cost-effecTIve and high-speedlinear regulator designed to generate terminaTIon voltagein double data rate (DDR) memory system to comply withthe JEDEC SSTL_2 and SSTL_18 or other specificinterfaces such as HSTL, SCSI-2 and SCSI-3 etc. devicesrequirements. The regulator is capable of acTIvely sinkingor sourcing conTInuous 2A or up to 3A transient peakcurrent while regulating an output voltage to within 40mV.The output termination voltage cab be tightly regulated totrack 1/2VDDQ by two external voltage divider resistors orthe desired output voltage can be pro-grammed by externallyforcing the REFEN pin voltage.The RT9173D also incorporates a high-speed differentialamplifier to provide ultra-fast response in line/load transient.Other features include extremely low initial offset voltage,excellent load regulation, current limiting in bi-directionsand on-chip thermal shut-down protection.The RT9173D are available in the SOP-8 (Exposed Pad)surface mount packages.
