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Product Spec Banner
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The RT9173/A regulator is designed to convert voltage supplies ranging from 1.6V to 6V into a desired output voltage which adjusted by two external voltage divider resistors. The regulator is capable of sourcing or sinking up to 3A of peak current while regulating an output voltage to within 2% (DDR 1) and 3% (DDR 2) or less.<br /><br />The RT9173/A, used in conjunction with series termination resistors, provides an excellent voltage source for active termination schemes of high speed transmission lines as those seen in high speed memory buses and distributed backplane designs. The voltage output of the regulator can be used as a termination voltage for DDR SDRAM.<br /><br />Current limits in both sourcing and sinking mode, plus on-chip thermal shutdown make the circuit tolerant of the output fault conditions.
RT9173/RT9173A Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Support Both DDR 1 (1.25V<sub>TT</sub>) and DDR 2 (0.9V<sub>TT</sub>) Requirements </li><li>SOP-8, TO-252-5 and TO-263-5 Packages </li><li>Capable of Sourcing and Sinking 3A Peak Current </li><li>Current-limiting Protection </li><li>Thermal Protection </li><li>Integrated Power MOSFETs </li><li>Generates Termination Voltages for SSTL-2 </li><li>High Accuracy Output Voltage at Full-Load </li><li>Adjustable V<sub>OUT</sub> by External Resistors </li><li>Minimum External Components </li><li>Shutdown for Standby or Suspend Mode Operation with High-impedance Output </li><li>RoHS Compliant and 100% Lead (Pb)-Free </li></ul></div>
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RT9173/RT9173A Ordering Information
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<div class="spec-list"><ul class="lv1"><li>DDR Memory Termination </li><li>Active Termination Buses </li><li>Supply Splitter </li></ul></div>
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