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RTQ2539A 是負載能力達 3A 的低雜訊、低壓差、高精度之壓差線性穩壓器(LDO),能夠以極低壓差提供3A電流(最大 130mV),最低輸入電壓可達 1.1V,易於使用。</br>低雜訊、高 PSRR、大電流能力使 RTQ2539A 成為對電源雜訊敏感的模數轉換器、數模轉換器和射頻器件的理想供電器件。因其輸出精度高、採用遙測技術,可用軟啟動降低衝擊電流,RTQ2539A 也是FPGA、DSP 和 ASIC 等數位器件常用的電源配置。</br>它具有易於進行時序控制的外部使能輸入端和 Power Good 指示,通過在 NR/SS 引腳增加外接旁路電容可增強其抑制輸出雜訊的效果。器件之規格在 T<sub>J</sub> = -40°C ~ 125°C 範圍內都能得到保證,其出貨封裝為 WQFN-12L 2.2x2.5 (FC)。
RTQ2539A 電路圖
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<div class="spec-list"><ul class="lv1"><li>輸入電壓範圍:1.1V~6.5V </li><li>輸出電壓範圍:0.8V~5.5V </li><li>全輸入、負載和溫度範圍內的輸出電壓精度為 1% </li><li>PSRR:40dB @ 500kHz </li><li>卓越的雜訊抑制能力 <ul class="lv2"> <li></li><li>6.8μV @ 0.8V 輸出 </li><li>10μV @ 3.3V 輸出 </li></ul> </li><li>最低輸入、輸出壓差:130mV @ 3A </li><li>使能控制 </li><li>可調軟啟動 </li><li>47μF 或更大的陶瓷輸出電容均可穩定工作 </li><li>Power Good 指示輸出 </li><li>符合RoHS規範,不含鹵素 </li><li>接面範圍為 -40°C 至 125°C </li></ul></div>
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RTQ2539A 訂購資訊
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<div class="spec-list"><ul class="lv1"><li>可擕式電子設備 </li><li>無線基礎設施之 SerDes、FPGA、DSP 供電 </li><li>射頻、中頻組件如 VCO、ADC、DAC、LVDS 之供電 </li></ul></div>
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