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The RT9045A is a simple, cost-effective and high-speed linear regulator designed to generate termination voltage in Double Data Rate (DDR) memory system to comply with the devices requirements. The regulator is capable of actively sinking or sourcing up to 1.8A while regulating an output voltage to within 20mV. The output termination voltage can be tightly regulated to track V<sub>DDQ</sub> / 2 by two external voltage divider resistors or the desired output voltage can be programmed by externally forcing the REFEN pin voltage. <p align="justify">The RT9045A also incorporates a high-speed differential amplifier to provide ultra-fast response in line/load transient. Other features include extremely low initial offset voltage, excellent load regulation, current limiting in bi-directions and on-chip thermal shutdown protection.</p>
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  • DDR VTT 应用的理想选择
  • 电流吐纳能力：
  • DDRII 1.8A @ VIN = 1.8V
  • DDRIII 1.5A @ VIN = 1.5V
  • LPDDRIII 1.2A @ VIN = 1.35V
  • DDRIV 1.2A @ VIN = 1.2V
  • 集成功率 MOSFET
  • 为 DDR 存储器接口生成终端电压
  • 配合陶瓷输出电容稳定工作
  • 全负载范围内高精度输出
  • 两只电阻即可调整输出电压
  • 外围元件少
  • 关机模式下对 RAM 呈现为高阻输出的挂起状态
  • 电流限制保护
  • 片内过热保护
  • 符合 RoHS 规范
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台式电脑、笔记本电脑和工作站 图形卡存储器终端 机顶盒、数字电视、打印机 嵌入式系统 动态终端总线 DDR 存储器系统
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