MP2855中文资料Dual-Loop, Digital, Multi-Phase Controller with PMBus Interface for AMD SVI2数据手册MPS规格书

描述 Description

The MP2855 is a dual-loop, digital, multi-phase controller that provides power for the core of the AMD SVI2 2.0 platform. The device can work with MPS’s Intelli-PhaseTM products to complete the multi-phase voltage regulator (VR) solution with minimal external components. The MP2855 can be configured with up to 9-phase operation for rail 1 and up to 4-phase operation for rail 2.

The MP2855 provides an on-chip non-volatile memory (NVM) to store and restore device configurations. Device configurations and fault parameters can be easily configured or monitored via the PMBus/I2C interface. The device can monitor and report the output current (IOUT) through the CS output from Intelli-PhaseTM products.

The MP2855 is based on unique, digital, multi-phase nonlinear control to provide a fast transient response to the load transient with minimal output capacitors. With only one power loop control method for both steady state and load transient, the power loop compensation is easy to configure.

The device is available in a TQFN-40 (5mmx5mm) package.

特性 Features

• Multi-Phase, Dual-Output, Digital Controller
• AMD SVI2 Compliant
• PMBus/I2C-Compatible (1MHz Bus Speed)
• Configurable Pin for PMBus Address
• Built-In Non-Volatile Memory (NVM) to Store Custom Configurations
• 200kHz to 3MHz Switching Frequency (fSW)
• Automatic Loop Compensation
• Fewer External Components than a Conventional Analog Controller
• Best Transient Performance with Nonlinear Digital Control
• Flexible Phase Assignment for Dual Rails
• Automatic Phase-Shedding to Improve Overall Efficiency
• Phase-to-Phase Active Current Balancing with Configurable Offsets for Thermal Balance
• Input and Output Voltage, Current, and Power Monitoring
• Regulator Temperature Monitoring
• VIN UVLO, Output OVP/UVP, OCP_TDC/OCP_SPIKE, OTP with No Action, Latch, Retry, or Hiccup Mode
• Intelli-PhaseTM MOSFET Fault Type Detection
• Auto-Records the VR Fault Type to the NVM
• Digital Load-Line Regulation
• Overclocking Mode by Adding Offset to Output Voltage (VOUT)
• RoHS-Compliant
• Available in a TQFN-40 (5mmx5mm) Package