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RT9199 是一款简单、具成本效益且高速的线性稳压器,专为在双倍数据率 (DDR) 存储器系统中产生终端电压而设计,以符合器件需求。此稳压器可主动灌入或供出高达峰值 2A(DDRII)或 1.5A(DDRIII)的电流,同时将输出电压调节在 20mV 以内。输出终端电压可通过两个外部电阻分压器精准调节,以跟踪 1/2V<sub>DDQ</sub>,或可通过外部强制 REFEN 引脚电压来设置所需的输出电压。RT9199 亦集成高速差动放大器,可在线路 / 负载瞬态中提供超快速响应。其他功能包括极低初始偏移电压、优异负载调节、双向限流与芯片内置热关断保护。RT9199 提供 SOP-8 与 SOP-8 (Exposed Pad) 表面贴装封装。
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<div class="spec-list"><ul class="lv1"><li>Ideal for DDRII / DDRIII V<sub>TT </sub>Applications </li><li>Sink and Source Current : <ul class="lv2"> <li></li><li>Peak 2A for DDRII </li><li>Peak 1.5A for DDRIII </li></ul> </li><li>Integrated Power MOSFETs </li><li>Generate Termination Voltage for DDR Memory Interfaces </li><li>High Accuracy Output Voltage at Full-Load </li><li>Output Adjustment by Two External Resistors </li><li>Low External Component Count </li><li>Shutdown for Suspend to RAM (STR) Functionality with High-Impedance Output </li><li>Current Limiting Protection </li><li>On-Chip Thermal Protection </li><li>RoHS Compliant and Halogen Free </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/II Memory Systems </li></ul></div>
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