RT8175A 数据手册 ( 数据表 ) - Richtek Technology
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Richtek Technology
General Description
The RT8175A is a VR12.1 compliant CPU power controller which includes one voltage rails : a 1 phase synchronous buck controller, the CORE VR. The RT8175A has zero load-line function to support zero load-line application. The RT8175A adopts G-NAVPTM (Green Native AVP), which is Richteks proprietary topology derived from finite DC gain compensator with current mode control, making it an easy to set the PWM controller, meeting all Intel CPU requirements of AVP (Active Voltage Positioning). Based on the G-NAVPTM topology, the RT8175A also features a quick response mechanism for optimized AVP performance during load transient.
Features
• VR12.1 Compatible Power Management States
• Switching Frequency up to 1MHz
• Serial VID Interface
• Signal Phase PWM Controller
• G-NAVPTM Topology
• 0.5% DAC Accuracy
• Differential Remote Voltage Sensing
• Built-in ADC for Platform Programming
• System Thermal Compensated AVP
• Diode Emulation Mode at Light Load Condition
• Fast transient Response
• VR Ready Indicator
• Thermal Throttling
• Current Monitor Output
• Low Quiescent Power at PS3 and PS4
• OVP, UVP, OCP, UVLO, NVP
• Address Flip Function
• DVID Improvement
Applications
• VR12.1 Intel Core Supply
• Notebook CPU Core Supply
• AVP Step-Down Converter