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RTQ2538H 是負載能力達 2A 的低雜訊、低壓差、高精度線性穩壓器,最低輸入電壓可達 1.1V,易於使用。低雜訊、高 PSRR、大電流能力使 RTQ2538H 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,RTQ2538H 也是FPGA、DSP 和 ASIC 等數位器件常用的電源配置。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 TJ = -40°C 至 125°C 範圍內都能得到保證,其出貨封裝為 WQFN-12L 2.2x2.5 (FC)。
輸入電壓範圍:1.1V至6.5V
輸出電壓範圍:0.8V至5.5V
全輸入、負載和溫度範圍內的輸出電壓精度為 1%
PSRR:43dB @ 500kHz
卓越的雜訊抑制能力►7.8μV @ 0.8V 輸出►12.8μV @ 5V 輸出
最低輸入、輸出壓差:90mV @ 2A
使能控制
可調軟啟動
47μF 或更大的陶瓷輸出電容均可穩定工作
Power Good 指示輸出
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