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RT9199 是一款簡單、具成本效益且高速的線性穩壓器,專為在雙倍資料率 (DDR) 記憶體系統中產生終端電壓而設計,以符合裝置需求。此穩壓器可主動汲入或供出高達峰值 2A(DDRII)或 1.5A(DDRIII)的電流,同時將輸出電壓調節在 20mV 以內。輸出終端電壓可透過兩個外部電阻分壓器精準調節,以追蹤 1/2V<sub>DDQ</sub>,或可透過外部強制 REFEN 腳位電壓來設定所需的輸出電壓。RT9199 亦整合高速差動放大器,可在線路 / 負載暫態中提供超快速響應。其他功能包括極低初始偏移電壓、優異負載調節、雙向限流與晶片內建熱關斷保護。RT9199 提供 SOP-8 與 SOP-8 (Exposed Pad) 表面黏著封裝。
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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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