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The RTQ2538H is a high-current, low-noise, high accuracy, low-dropout linear regulator (LDO) capable of sourcing 2A with extremely low dropout (max. 90mV). The device supports single input supply voltage as low to 1.1V, enhancing its ease of use.<br /><br />The low-noise, high PSRR and high output current capability makes the RTQ2538H ideal for powering noise-sensitive devices such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. With very high accuracy, remote sensing, and soft-start capabilities to reduce inrush current, the RTQ2538H is suitable for powering digital loads such as FPGAs, DSPs, and ASICs.<br /><br />The external enable control and power good indicator function make the control sequence easier. The output noise immunity is enhanced by adding external bypass capacitor on the NR/SS pin. The device is fully specified over the temperature range of TJ = -40&deg;C to 125&deg;C and is offered in the WQFN-12L 2.2x2.5 (FC).
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  • 输入电压范围：1.1V至6.5V
  • 输出电压范围：0.8V至5.5V
  • 全输入、负载和温度范围内的输出电压精度为 1%
  • PSRR：43dB @ 500kHz
  • 卓越的噪声抑制能力
    ►7.8μV @ 0.8V 输出
    ►12.8μV @ 5V 输出
  • 最低输入、输出压差：90mV @ 2A
  • 使能控制
  • 可调软启动
  • 47μF 或更大的陶瓷输出电容均可稳定工作
  • Power Good 指示输出
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便携式电子设备 无线基础设施之 SerDes、FPGA、DSP 供电 射频、中频组件如 VCO、ADC、DAC、LVDS 之供电
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