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RT9173/A 是设计用于将 1.6V 至 6V 范围内的输入电压转换为由两只外部电阻构成的分压器所设定的输出电压的转换器,其输出具有释出或吸入高达 3A 峰值电流的能力以维持输出电压在设定值的 2%(DDR)和 3%(DDR-2) 或更小的误差范围内。RT9173/A 通常被用于和一系列终端电阻连接在一起,为高速存储器总线和分布式背板设计提供动态终端匹配用的优质电压源,作为 DDR SDRAM 的终端匹配电压源是其最常见的用法。它同时具有释出电流和吸入电流的限制措施,具有热关机功能,能应对各种输出端故障状态。
满足 DDR(1.25V VTT) 和 DDR2(0.9V VTT)存储器应用需求
SOP-8、TO-252-5 和 TO-263-5 封装
释出和吸入电流能力达 3A
电流限制保护
过热保护
集成 MOSFET 功率管
可为 SSTL-2 提供终端电压
满载输出电压精度高
输出电压由外接电阻设定
外围元件数量少
待机时关机或高阻输出的挂起模式
符合 RoHS 规范,不含卤素
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