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The RTQ2551A-QA 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 RTQ2551A-QA 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 RTQ2551A-QA 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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<li class="mv5"> AEC-Q100 Grade 1 Qualified<br /> </li><li class="mv5"> Ultralow V<sub>IN</sub> Range: 0.8V to 5.5V<br /> </li><li class="mv5"> VBIAS Voltage Range: 2.7V to 5.5V<br /> </li><li class="mv5"> VOUT Voltage Range: 0.8V to 3.6V<br /> </li><li class="mv5"> Low Dropout: 50mV Typical at 1A, V<sub>BIAS</sub> = 5V<br /> </li><li class="mv5"> 1% Accuracy Over Line/Load/Temperature<br /> </li><li class="mv5"> Power-Good Indicator for Easy Sequence Control<br /> </li><li class="mv5"> Programmable Soft-Start Provides Linear Voltage Startup<br /> </li><li class="mv5"> Stable with Any Output Capacitor ≥ 2.2μF<br /> </li><li class="mv5"> Overcurrent and Over-Temperature Protection</li>
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<li class="mv5"> PCs, Servers, Modems, and Set-Top Boxes<br /> </li><li class="mv5"> FPGA Applications<br /> </li><li class="mv5"> DSP Core and I/O Voltages<br /> </li><li class="mv5"> Instrumentation<br /> </li><li class="mv5"> Post-Regulation Applications<br /> </li><li class="mv5"> Applications With Sequencing Requirements</li>
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