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The RT3672EE is a synchronous buck controller that supports single output rail and fully meets AMD SVI3 requirements. The RT3672EE 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 AMD CPU/GPU requirements of AVP (Adaptive Voltage Positioning). Based on the G-NAVP<sup>TM</sup> topology, the RT3672EE features a new generation of quick response mechanism (Adaptive Quick Response, AQR) to optimize AVP performance during load transient and to reduce output capacitors. The RT3672EE integrates a high accuracy ADC for reporting and a non-volatile memory (NVM) to store custom configurations, such as output current scale, auto phase add/drop threshold, switching frequency, overcurrent threshold or AQR trigger level. It also features full fault protection functions, including overvoltage (OV), undervoltage (UV), overcurrent (OC), undervoltage lockout (UVLO), over-temperature protection (OTP), VR-hot warning, CRC failure and communication failure. The RT3672EE provides enable, power good and temperature sensing. It also supports functions that can be set by the I<sup>2</sup>C interface. The recommended junction temperature is -40°C to 125°C.
RT3672EE Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>AMD SVI3 Rev 1.01 Compatible </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 Reporting </li><li>Accurate Current Balance </li><li>Diode Emulation Mode (DEM) at Light Load </li><li>Fast Transient Response: Adaptive Quick Response (AQR), Absolutely Quick Response (ABS_QR) </li><li>OVP, OCP and UVP with Flag </li><li>Switching Frequency Setting </li><li>Auto Phase Add/Drop with DEM for Excellent Efficiency </li><li>Voltage On-the-Fly (VOTF) Enhancement </li><li>Acoustic Noise Suppression </li><li>Zero Load-line </li><li>Standard I<sup>2</sup>C Protocol Interface <ul class="lv2"> <li></li><li>Internal Non-Volatile Memory (NVM) to Store Custom Configurations </li><li>Current Balance Gain Adjustment for Thermal Balance </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>Monitoring for Output Voltage/Output Current/ Temperature </li></ul> </li><li>Soldering Good Detection </li><li>Small 48-Lead WQFN Package </li></ul></div>
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RT3672EE Ordering Information
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<div class="spec-list"><ul class="lv1"><li>AMD SVI3 VDD_MISC Rail </li><li>Desktop and Notebook Computer </li><li>AVP Step-Down Converter </li></ul></div>
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