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RT9173 是简单好用、性价比高的高速线性调节器,被设计用于为符合 JEDEC SSTL_2 和 SSTL_18 规范的 DDR 内存系统或具有 HSTL 、 SCSI-2 和 SCSI-3 等接口的设备生成终端匹配电压。该调节器具有在 40mV 电压误差范围内动态吸入或是释出 2A (瞬态峰值 3A )电流的能力,其输出电压能够精确地跟踪由两只外部电阻分压器所形成的 1/2V<sub>DDQ</sub> 电压或是其它希望的电压,该电压经由 REFEN 引脚输入至调节系统中。RT9173 内部包含了一个高速查分运算放大器,这成为它对线路/负载瞬态过程的超快速响应的支撑。它的其它特性包括了超低偏移电压、极好的负载调整特性、双向电流限制和内置的热关机保护。RT9173 以 PSOP-8 的表面贴片封装形式供货。
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<div class="spec-list"><ul class="lv1"><li>DDR, DDR-II 和 DDR-III V<sub>TT</sub> 应用的理想选择 </li><li>电流吐纳能力 </li><li>2A 连续电流 </li><li>峰值 3A 电流支持 DDR 和 DDR-II </li><li>峰值 2.5A 电流支持 DR-III </li><li>集成功率 MOSFET </li><li>为 SSTL_2, SSTL_18, HSTL, SCSI-2 和 SCSI-3 接口生成终端匹配电压 </li><li>全负载范围内的高精度输出电压 </li><li>输出由两只外部电阻调整 </li><li>外部元件数量少 </li><li>关机时对 RAM 的挂起状态呈现为高阻输出 </li><li>电流限制保护 </li><li>内置热保护 </li><li>PSOP-8 封装 </li><li>V<sub>IN</sub> 和 V<sub>CNTL</sub> 之间无电源时序问题 </li><li>符合 RoHS 规范,完全无铅 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Desktop PCs, Notebooks, and Workstations </li><li>Graphics Card Memory Termination </li><li>Set Top Boxes, Digital TVs, Printers </li><li>Embedded Systems </li><li>Active Termination Buses </li><li>DDR-I, DDR-II and DDR-III Memory Systems </li></ul></div>
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