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The RT9611A/B is a high frequency, synchronous rectified, single phase dual MOSFET driver designed to adapt from normal MOSFET driving applications to high performance CPU VR driving capabilities.<br />The RT9611A/B can be utilized under both V<sub>CC</sub> = 5V or V<sub>CC</sub> = 12V applications. The RT9611A/B also builds in an internal power switch to replace external boot strap diode. The RT9611A/B can support switching frequency efficiently up to 500kHz. The RT9611A/B has the UGATE driving circuit and the LGATE driving circuit for synchronous rectified DC/DC converter applications. The driving rise/fall time capability is designed within 30ns and the shoot through protection mechanism is designed to prevent shoot through of high side and low side power MOSFETs. The RT9611A/B has PWM tri-state shut down and <span class="overline">OD</span> input shut down functions which can force driver output into high impedance. <br />The difference of the RT9611A and the RT9611B is the propagation delay, t<sub>UGATEpdh</sub>. The RT9611B has comparatively large t<sub>UGATEpdh</sub> than RT9611B. Hence, the RT9611A is usually recommended to be utilized in performance oriented applications, such as high power density CPU VR or GPU VR. <br />The RT9611A/B comes in a small footprint with 8-pin packages. The choice of packages type includes SOP-8, SOP-8 (Exposed Pad) and WDFN-8EL 3x3.</div>
RT9611A/RT9611B Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Drive Two N-MOSFETs </li><li>Adaptive Shoot Through Protection </li><li>Embedded Bootstrap Diode </li><li>Support High Switching Frequency </li><li>Fast Output Rise Time </li><li>Tri-State Input for Bridge Shutdown </li><li>Disable Control Input </li><li>Small SOP-8, SOP-8 (Exposed Pad) and 8-Lead WDFN Packages </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Core Voltage Supplies for Desktop, Motherboard CPU </li><li>High Frequency Low Profile DC/DC Converters </li><li>High Current Low Voltage DC/DC Converters </li></ul></div>
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