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The RT3628 is a synchronous buck controller which supports 2 output rails and can fully meet Intel IMVP9.1 requirements. The RT3628 adopts G-NAVP<sup>TM</sup> (Green Native AVP) which is Richtek′s proprietary topology derived from finite DC gain of EA amplifier with current mode control, making it easy to set the droop to meet all Intel CPU requirements of AVP (Adaptive Voltage Positioning). Based on the G-NAVP<sup>TM</sup> topology, the RT3628 features a new generation of quick response mechanism (Adaptive Quick Response, AQR) to optimize AVP performance during load transient and reduce output capacitors. The RT3628 integrates a high accuracy ADC for platform and function settings, such as ICCMAX, switching frequency, overcurrent threshold and AQR trigger level. The RT3628 provides VR Ready and thermal indicators. It also features complete fault protection functions, including overvoltage (OV), undervoltage (UV), overcurrent (OC) and undervoltage lockout (UVLO). The RT3628 supports several functions which can be set by I<sup>2</sup>C interface, like thermal balance adjustment, dynamic load line, voltage offset setting, fix VID setting, protection report, protection disable and Current/PSYS/Temperature report. The recommended junction temperature is -40°C to 125°C.
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<div class="spec-list"><ul class="lv1"><li>Intel IMVP9.1 Compliant </li><li>8/7/6/5/4 Phase (CORE VR) + 1 Phase (AXG VR) PWM Controller </li><li>G-NAVP<sup>TM</sup> (Green Native Adaptive Voltage Positioning) Topology </li><li>0.5% DAC Accuracy </li><li>Differential Remote Voltage Sensing </li><li>Built-in ADC for Platform Programming and Reporting </li><li>Accurate Current Balance </li><li>Diode Emulation Mode at Light Load Condition </li><li>Fast Transient Response: Adaptive Quick Response (AQR) </li><li>VR Ready Indicator </li><li>OVP, OCP, UVP with Flag </li><li>Switching Frequency Setting </li><li>Slew Rate Setting </li><li>DVID Enhancement </li><li>Acoustic Noise Suppression </li><li>Zero Load-line </li><li>Rail Disable </li><li>Standard I<sup>2</sup>C Protocol Interface <ul class="lv2"> <li></li><li>Thermal Balance Adjustment </li><li>Dynamic Load Line Setting </li><li>Voltage Offset Setting </li><li>Fixed VID Setting </li><li>Protection Report and Protection Disable </li><li>Current/PSYS/Temperature Report </li></ul> </li><li>Soldering Good Detection </li><li>Small 60-Lead WQFN Package </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>IMVP9.1 Intel Core/AXG Supply </li><li>Desktop and Notebook Computer </li><li>AVP Step-Down Converter </li></ul></div>
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