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The RT9731A/B is a dual channel power distribution switch intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. This device offers a programmable current limit threshold between 560mA and 2.8A (typ.) per channel via an external resistor. The power-switch's rising and falling times are controlled to minimize current surges during on/off transitions. <p align="justify">Each channel of the RT9731A/B limits the output current to a safe level by switching into constant-current mode whenever the output load exceeds the current limit threshold. The FLAG logic output of each channel independently asserts low during over current. </p><p align="justify">The RT9731A/B is available in a thin WDFN-10L 3x3 package.</p>
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<li class="mv5"> 2.5V to 5.5V Input Voltage Range</li><li class="mv5"> Two Separate Current Limiting Channels</li><li class="mv5"> Meets USB Current Limiting Requirements</li><li class="mv5"> Adjustable Current Limit from 560mA to 2.8A</li><li class="mv5"> ±7.5% Current Limit Accuracy at 2.8A</li><li class="mv5"> Two 44mΩ High Side MOSFETs</li><li class="mv5"> 2μA Maximum Standby Supply Current</li><li class="mv5"> Built-in Soft-Start</li><li class="mv5"> Thin 10-Lead WDFN Package</li><li class="mv5"> UL Approved-E219878<img alt="" width="24" height="24" src="/assets/2011/08/03/99769apajs.GIF" /></li><li class="mv5"> Nemko Approved-NO65969</li><li class="mv5"> RoHS Compliant and Halogen Free</li>
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<li class="mv5"> USB Ports/Hubs<br /></li><li class="mv5"> Digital TV<br /></li><li class="mv5"> Set-Top Boxes<br /></li><li class="mv5"> VOIP Phones</li>
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