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The RTQ2551 is a very low dropout linear regulator that operates from an input voltage as low as 0.8V. The device is capable of supplying 1A of output current with a typical dropout voltage of only 50mV. A VBIAS supply is required to run the internal reference and LDO circuitry while output current comes directly from the VIN supply for high-efficiency regulation. User-programmable soft-start limits the input inrush current and minimizes stress on the input power. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility provides an easy-to-use robust power management solution for a wide variety of applications.The RTQ2551 is stable with an output capacitor greater than or equal to 2.2μF. A precise reference and error amplifier deliver 1% accuracy over load, line and temperature. Overcurrent limit and over-temperature protection are also included. The RTQ2551 is available in the WDFN-10L 3x3 package.The recommended junction temperature and ambient temperature ranges are -40°C to 125°C.
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<div class="spec-list"><ul class="lv1"><li>AEC-Q100 Grade 1 Qualified </li><li>Ultralow V<sub>IN</sub> Range: 0.8V to 5.5V </li><li>VBIAS Voltage Range: 2.7V to 5.5V </li><li>VOUT Voltage Range: 0.8V to 3.6V </li><li>Low Dropout: 50mV Typical at 1A, V<sub>BIAS</sub> = 5V </li><li>1% Accuracy Over Line/Load/Temperature </li><li>Power-Good Indicator for Easy Sequence Control </li><li>Programmable Soft-Start Provides Linear Voltage Startup </li><li>Stable with Any Output Capacitor ≥ 2.2μF </li><li>Overcurrent and Over-Temperature Protection </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>PCs, Servers, Modems, and Set-Top Boxes </li><li>FPGA Applications </li><li>DSP Core and I/O Voltages </li><li>Instrumentation </li><li>Post-Regulation Applications </li><li>Applications With Sequencing Requirements </li></ul></div>
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