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The RT5797B is a high efficiency synchronous step-down DC/DC converter. Its input voltage range is from 2.7V to 6V and provides an adjustable regulated output voltage from 0.6V to 3.4V while delivering up to 3A of output current. The internal synchronous low on-resistance power switches increase efficiency and eliminate the need for an external Schottky diode. The Current Mode Constant-On-time (CMCOT) operation with internal compensation allows the transient response to be optimized over a wide range of loads and output capacitors. The RT5797B is available in the WDFN-8L 2x2 package.
RT5797B Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Efficiency Up to 95% </li><li>R<sub>DSON</sub> 100mΩ HS / 70mΩ LS </li><li>V<sub>IN</sub> Range 2.7V to 6V </li><li>V<sub>REF</sub> 0.6V with ±1% Accuracy at 25°C </li><li>CMCOT™ Control Loop Design for Best Transient Response, Robust Loop Stability with Low-ESR (MLCC) C<sub>OUT</sub> </li><li>Soft-Start 1.2ms </li></ul></div>
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RT5797B Ordering Information
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<div class="spec-list"><ul class="lv1"><li>STB, Cable Modem, & xDSL Platforms </li><li>LCD TV Power Supply & Metering Platforms </li><li>General Purpose Point of Load (POL) </li></ul></div>
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