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MP2891
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Description
The MP2891 is a dual-rail, digital, multi-phase controller that provides power for NVIDIA PWMVID core power. The MP2891 can work with MPS’s Intelli-PhaseTM products to complete the multi-phase voltage regulator (VR) solution with minimal external components. The MP2891 can be configured for up to a maximum of 16 phases on rail 1, and a maximum of 8 phases on rail 2.
The MP2891 stores and restores device configurations. Device configurations and fault parameters can be easily configured or monitored. The MP2891 can monitor and report the output current (IOUT) by sensing the current-sense output of Intelli-PhaseTM devices.
The MP2891 is based on a 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 simple to configure.
The MP2891 is available in a QFN-56 (7mmx7mm) package.
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Features & Benefits
- Up to 16-Phase, 2-Output, Digital Controller
- PWM-VID Compatible with NVIDIA Open VReg Specification (OVR4i+)
- Stores Configurations
- 200kHz to 3MHz Switching Frequency (fSW)
- Automatic Loop Compensation
- Couple Inductor Mode
- Supports Multi-Configuration for 6 Different Applications
- Flexible Pulse-Width Modulation (PWM) Assignment for 2 Rails
- Automatic Phase-Shedding (APS) to Improve Overall Efficiency
- Phase-to-Phase Active Current Balancing with Configurable Offsets for Thermal Balance
- Input Voltage (VIN), Output Voltage (VOUT), Current, and Power Monitoring
- VIN Under-Voltage Lockout (UVLO), Output Over-Voltage Protection (OVP) and Under-Voltage Protection (UVP), Over-Current Protection (OCP), and Over-Temperature Protection (OTP) with No Action, Latch-Off, or Hiccup Options
- Intelli-PhaseTM Fault Diagnosis
- Digital Load-Line Regulation
- Overclocking Mode by Adding Offset to VOUT
- Available in a QFN-56 (7mmx7mm) Package

Active Part Numbers:
MP2891GQN-xxxx-Z MP2891GQN-xxxx-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MP2891 Resources
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USE CASE
INTELLI-MODULE USE CASE: AI PROCESSORS IN OAM FORM FACTORSUSE CASEThis use case considers the application of the MPC22167-130 for AI processors in open accelerator module (OAM) form factors (see Figure 1). Multiple MPC22167-130 devices can be paired with first-stage power modules to support end-to-end power solutions that meet the high-power requirements of AI processors in open accelerator module form factors. Interest in AI computing is growing astrono...
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ARTICLE
PREDICTIVE TRANSIENT SIMULATION ANALYSIS FOR THE NEXT GENERATION OF GPUSARTICLENowadays, graphics processing units (GPUs) feature tens of billions of transistors. With each new generation of GPUs, the number of transistors in GPUs continues to increase to improve processor performance. However, the growing number of transistors is also resulting in an exponential increase in power demand, which makes it more difficult to meet transient response specifications. This article ...
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PRODUCT CATEGORY
PROCESSOR CORE POWER CONTROLLERSPRODUCT CATEGORY -
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SERVERS (DDR5 POWER)APPLICATIONDDR5 SDRAM (synchronous dynamic random-access memory) is the latest generation of DDR memory. It is the successor to DDR4 and offers significant improvements in speed, capacity, and power efficiency. DDR5 memory modules are designed for use in personal computers, workstations, and servers. Key benefits of DDR5 memory modules include: Higher speeds: DDR5 memory modules can operate at speeds ...
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APPLICATION
SERVERS (CORE POWER) DATA CENTER SOLUTIONAPPLICATIONCloud computing, AI and machine learning, and other game-changing innovations are spreading across the technology industry and becoming ubiquitous in consumers everyday lives. However, supporting the increased processing and data needs of these technologies requires servers and data centers to be able to deliver at greater rates than ever before. High power density than ever has to fit into shrink...
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GOOD NEWS! MPS MP2888A RECEIVES 2018 WORLD ELECTRONICS ACHIEVEMENT AWARDARTICLELast week, the list of the 2018 World Electronics Achievement Awards was unveiled at the Global Double Summit hosted by ASPENCORE, the world's largest media group in the field of electronic technology. The MP2888A from MPS won the title of "Power Management/Voltage Converter of the Year" as the industry's first 10-phase digital controller. MPS becomes one of only three companies that have won this...
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