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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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RT3612EB 데이터시트(PDF) 1 Page - Richtek Technology Corporation |
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RT3612EB 데이터시트(HTML) 1 Page - Richtek Technology Corporation |
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1 / 47 page  RT3612EB ® DS3612EB-02 December 2019 www.richtek.com 1 © Copyright 2019 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Features Intel IMVP9 Serial VID Interface Compatible Power Management States 2/1 Phase PWM Controller and 2 Embedded MOSFET Drivers G-NAVPTM (Green Native Adaptive Voltage Positioning) Topology 0.5% DAC Accuracy Differential Remote Voltage Sensing Built-in ADC for Platform Programming and Reporting Accurate Current Balance System Thermal Compensated AVP Diode Emulation Mode at Light Load Condition Fast Transient Response-Adaptive Quick Response (AQR) VR Ready Indicator Thermal Monitoring and Indicator Current Monitoring IMVP9 System Input Power Monitoring OVP, OCP, UVLO, UVP Switching Frequency Range Setting Slew Rate Setting DVID Enhancement Acoustic Noise Suppression Small 32-Lead WQFN Package General Description The RT3612EB is a 2/1 phase synchronous buck controller designed to meet Intel IMVP9 compatible CPU specification with a serial VID control interface. The RT3612EB adopts G-NAVPTM (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- NAVPTM topology, the RT3612EB features a new generation of quick response mechanism (Adaptive Quick Response, AQR) to optimize AVP performance during load transient and reduce output capacitors. The RT3612EB supports mode transition function with various operating states. A serial VID (SVID) interface is built in the RT3612EB to communicate with Intel IMVP9 compliant CPU. The RT3612EB supports VID on-the-fly function with three different slew rates: Fast, Slow and Decay. By utilizing the G-NAVPTM topology, the operating frequency of the RT3612EB varies with VID, load and input voltage to further enhance the efficiency even in CCM. Moreover, the G-NAVPTM with CCRCOT (Constant Current Ripple COT) technology provides superior output voltage ripple over the entire input/output range. The built-in high accuracy DAC converts the SVID code ranging from 0V to 2.74V with 10mV per step. The RT3612EB integrates a high accuracy ADC for platform and function settings, such as ICCMAX, switching frequency, over-current threshold and AQR trigger level. The RT3612EB provides VR Ready and thermal indicators. It also features complete fault protection functions including over-voltage (OV), under- voltage (UV), over-current (OC) and under-voltage lockout (UVLO). Applications IMVP9 Intel Core Supply Notebook Computer Multi-Phase CPU Core Supply AVP Step-Down Converter Simplified Application Circuit 2-Phase PWM Controller with Dual Integrated Drivers for IMVP9 CPU Core Power Supply VCORE PHASE2 PHASE1 RT3612EB MOSFET MOSFET VR_READY VR_HOT# VCLK VDIO ALERT# To CPU To PCH |
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