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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°C to 125°C and is offered in the WQFN-12L 2.2x2.5 (FC).
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<li class="mv5"> Input Voltage Range: 1.1V to 6.5V <br /> </li><li class="mv5"> Output Voltage Range: 0.8 V to 5.5V<br /> </li><li class="mv5"> Accurate Output Voltage Accuracy (1%) Over Line, Load and Temperature<br /> </li><li class="mv5"> Ultra-High PSRR: 43dB at 500kHz <br /> </li><li class="mv5"> Excellent Noise Immunity<br /> ► 7.8μVRMS at 0.8V Output<br /> ► 12.8μVRMS at 5V Output<br /> </li><li class="mv5"> Ultra-Low Dropout Voltage: 90mV Max. at 2A<br /> </li><li class="mv5"> Enable Control<br /> </li><li class="mv5"> Programmable Soft-Start Output<br /> </li><li class="mv5"> Stable with a 47μF or Larger Ceramic Output Capacitor<br /> </li><li class="mv5"> Supports Power-Good Indicator Function</li>
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<li class="mv5"> Portable Electronic Devices<br /> </li><li class="mv5"> Wireless Infrastructures: SerDes, FPGA, DSP<br /> </li><li class="mv5"> RF, IF, Components: VCO, ADC, DAC, LVDS</li>
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