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The RTQ2537E is a high-current (4A), low-noise (6.8&mu;VRMS), high accuracy (1% over line, load, and temperature), low-dropout linear regulator (LDO) capable of sourcing 4A with an extremely low dropout (maximum 240mV). The device supports a single input supply voltage as low to 1.1V, which makes it easy to use.<br /><br />The low-noise, high PSRR, and high output current capability make the RTQ2537E ideal to power 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 RTQ2537E is ideal 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 an external bypass capacitor on the NR/SS pin. The device is fully specified over the temperature range of T<sub>J</sub> = -40&deg;C to 125&deg;C and is offered in the VQFN-20L 3.5x3.5 package.
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  • 输入电压范围：1.1V至6.5V
  • 两种输出电压模式
    ►0.5V 至 5.5V（由电阻分压器设定）
    ►0.5V 至 2.075V（透过 PCB 布局设置，无需外部电阻）
  • 在线路、负载和温度范围内的准确输出电压精度 (1%)
  • PSRR：500kHz 时为 44dB
  • 抗噪性
    ►0.5V 输出时为 6.8μVRMS
    ►5V 输出时为 16μVRMS
  • 压力差：4A 时最大 240mV
  • 启用控制
  • 可程式软启动输出
  • 使用 47μF 或更大的陶瓷输出电容器时保持稳定
  • 支援电源良好指示功能
  • 结温范围：-40°C 至 125°C
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手提电子设备 无线基础设施：序列器与解序列器、现场可程式化闸阵列、数位讯号处理器 RF、IF、组件：压控振荡器、类比数位转换器、数位类比转换器、低电压差分讯号
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