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<!-- Paste General Description --><p align="justify">The RT8848A/B is a 8/7/6/5/4/3/2/1 multi-phase synchronous Buck controller which is optimized for high performance graphic microprocessor and support nVidia OVR4i+ spec with PWM-VID interface. The RT8848A/B adopts AC G-NAVP<sup>TM</sup> (Green Native AVP) which is Richtek's proprietary topology derived from finite DC gain of internal GM amplifier with current mode control. By utilizing the AC G-NAVP<sup>TM</sup> topology, the operating frequency of the RT8848A/B varies with VID, load and input voltage to further enhance the efficiency even in CCM. Besides, for current sensing application, the RT8848A/B can support either a traditional DCR network current sense from inductor or a smart power stage (SPS) which can directly provide a current monitor signal (IMON). </p><p align="justify">The RT8848A/B features external reference input and PWM-VID dynamic output voltage control, in which the output voltage is regulated and tracks external input reference voltage. The RT8848A/B can set internal RAMP amplitude through PINSETx pin and this can optimize stability and load transient performance. The RT8848A/B also provides complete fault protection functions including over-voltage protection (OVP), under-voltage protection (UVP), channel over-current limit (CH_OC), sum output current protection (SOC) and over-temperature protection (OTP).</p>
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<li class="mv5"> Multi-Phase PWM Controller<br /></li><li class="mv5"> PWM-VID Dynamic Voltage Control<br /></li><li class="mv5"> Support 1.8V PWM-VID Interface<br /></li><li class="mv5"> Power State Indicator<br />► LPC (Low Phase Count), PSI = Low<br />► APS (Auto Phase Shedding), PSI = Mid<br />► HPC (High Phase Count), PSI = High<br /></li><li class="mv5"> External Reference Input Control<br /></li><li class="mv5"> 8/7/6/5/4/3/2/1 Phase Hardware Setting<br /></li><li class="mv5"> Adjustable Soft-Start Time<br /></li><li class="mv5"> Adjustable Switching Frequency<br /></li><li class="mv5"> Adjustable Phase Current Balance<br /></li><li class="mv5"> Support Standby Mode<br /></li><li class="mv5"> UVP/OVP/OTP/SOC/CH_OC/TSEN Protection<br /></li><li class="mv5"> Adjustable Protection Thresholds<br /></li><li class="mv5"> Power Good Indicator<br /></li><li class="mv5"> ADC Reporting for IMON, TSEN and VSEN<br /></li><li class="mv5"> Support I<sup>2</sup>C Interface for Programming<br /></li><li class="mv5"> RoHS Compliant and Halogen Free</li>
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<li class="mv5"> GPU Core Power for OVR4i+ Spec</li>
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