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RT3662EB Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT3662EB Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 28 page  RT3662EB Copyright © 2019 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS3662EB-04 August 2019 www.richtek.com 1 Single Channel PWM Controller with 2 Integrated Drivers for AMD SVI2 GPU CORE Power Supply General Description The RT3662EB is a single channel PWM controller with 2 integrated drivers, and it is compliant with AMD SVI2 Voltage Regulator Specification to support GPU power (VDDC). The RT3662EB features CCRCOT (Constant Current Ripple Constant On-Time) with G-NAVP (Green-Native AVP), which is Richtek's proprietary topology. G-NAVP makes it an easy setting controller to meet all AMD AVP (Adaptive Voltage Positioning) VDDC requirements. The droop is easily programmed by setting the DC gain of the error amplifier. With proper compensation, the load transient response can achieve optimized AVP performance. The controller also uses the interface to issue VOTF Complete and to send digitally encoded voltage and current values for the VDDC domains. The RT3662EB can operate in diode emulation mode to enhance the light load efficiency. And it provides the current gain adjustment capability by pin setting. The RT3662EB provides power good indication, thermal indication (VRHOT_L), and it features complete fault protection functions including, over current, over voltage and under voltage. Marking Information 3B=YM DNN 3B= : Product Code YMDNN : Date Code Features 2/1-Phase (VDDC) PWM Controller 2 Embedded MOSFET Drivers G-NAVPTM Topology Support Dynamic Load-Line and Zero Load-Line Diode Emulation Mode at Light Load Condition SVI2 Interface to Comply with AMD Power Management Protocol Adjustable Current Gain Capability DVID Enhancement 0.5% DAC Accuracy Differential Remote Voltage Sensing Build-in ADC for Pin Setting Programming, Thermal Indication and VOUT, IOUT Reporting Fast Transient Response Power Good Indicator Thermal Indicator (VRHOT_L) OVP, UVP and UVLO Over Current Protection Applications AMD SVI2 GPU Core Power Laptop Computer Simplified Application Circuit PHASE2 PHASE1 RT3662EB VRHOT_L SVD SVT To GPU SVC MOSFET VVDDC MOSFET |
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