Número de pieza
RT8876A
componentes Descripción
Other PDF
PDF
page
50 Pages
File Size
686.7 kB
Fabricante
Richtek Technology
RT8876A Hoja de datos - Richtek Technology
Richtek Technology
General Description
The RT8876A is a VR12/IMVP7 compliant CPU power controller which includes two channels : a 3/2/1 phase with 3 integrated drivers synchronous Buck controller for the CORE VR, and a single phase Buck controller for the AXG VR. The RT8876A adopts G-NAVPTM (Green Native Adaptive Voltage Positioning), which is Richteks proprietary topology derived from a finite DC gain compensator with current mode control, making it an easy setting PWM controller, meeting all Intel CPU requirements of AVP. Based on the G-NAVPTM topology, the RT8876A also features a quick response mechanism for optimizing AVP performance during load transient.
Features
• VR12/IMVP7 Compatible Power Management
• 3/2/1 Phase for CORE VR and Single Phase for AXG
VR
• 3 Embedded MOSFET Drivers at the CORE VR
• G-NAVPTM Topology
• Serial VID Interface
• 0.5% DAC Accuracy
• Differential Remote Voltage Sensing
• Built-in ADC for Platform Programming
• Accurate Current Balance
• System Thermal Compensated AVP
• Diode Emulation Mode at Light Load Condition for
Single Phase
• Fast Transient Response
• 1.1VINITIAL / 0.0VINITIAL for both Rails at Startup
• Power Ready Indicator
• Thermal Throttling
• Current Monitor Output
• OVP, UVP, OCP, OTP, UVLO
• External No-load Offset Setting for both Rails
• DVID Enhancement
• 56-Lead WQFN Package
• RoHS Compliant and Halogen Free
Applications
• VR12/IMVP7 Intel Core Supply
• Notebook/ Desktop Computer/ Servers Multi-phase CPU
Core Supply
• AVP Step-Down Converter
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