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The RT9701 is an integrated 100mΩ power switch for self-powered and bus-powered Universal Series Bus (USB) applications. A built-in charge pump is used to drive the N-Channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. Its low quiescent current (23μA) and small package (SOT-23-5) is particularly suitable in battery-powered portable equipment.<br />Several protection functions include soft start to limit inrush current during plug-in, current limiting at 1.5A to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.
RT9701 Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>100mΩ Typ. High-Side NMOSFET (SOT-23-5) </li><li>Guaranteed 1.1A Continuous Current </li><li>1.5A Current Limit </li><li>Small SOT-23-5 Package Minimizes Board Space </li><li>Soft Start </li><li>Thermal Protection </li><li>Low 23μA Supply Current </li><li>Wide Input Voltage Range : 2.2V to 6V </li><li>UL Approved - #E219878 </li><li>RoHS Compliant and 100% Lead (Pb)-Free </li></ul></div>
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RT9701 Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Battery-Powered Equipment </li><li>Motherboard USB Power Switch </li><li>USB Device Power Switch </li><li>Hot-Plug Power Supplies </li><li>Battery-Charger Circuits </li></ul></div>
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