MP2953BGU-0000-Z Datasheet, PDF (1/30 Pages) MPS Industries, Inc. – Digital Multi-Phase Controller with PMBus Interface for VR12.5

The Future of Analog IC Technology
DESCRIPTION
The MP2953B is a digital multi-phase controller
that provides power for the core of the INTEL
VR12.5 platform. It works with MPS’ Intelli-
Phase products to complete the multi-phase VR
solution with minimal external components. It
can be configured for 1 ~ 6 phase operation.
The MP2953B provides on-chip EEPROM to
store and restore device configurations. Device
configurations and fault parameters are easy to
program or monitor using the PMBus interface.
The MP2953B monitors and reports the output
current through CS output from Intelli-Phase
products.
The MP2953B is based on a unique digital
multi-phase, non-linear control to provide fast
transient response to 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
easily configured.
MP2953B
Digital Multi-Phase Controller
with PMBus Interface for VR12.5
FEATURES
• 6-Phase Digital PWM Controller
• Intel’s VR12.5 Compliant
• PMBus Compliant
• Serial VID Interface for Programming and
Monitoring
• Pin Programmable SVID registers
• Built-In EEPROM to Store Custom
Configurations
• Automatic Loop Compensation
• Less External Components than
Conventional Analog Controllers
• Phase-Shedding at Light Load to Provide
High Efficiency
• Phase-to-Phase Active Current Balancing
• Input and Output Voltage, Current, and
Power Monitoring
• Regulator Temperature Monitoring
• Open-Drain FAULT# Signal for Fault
Notification
• RVP/OVP/UVP/OCP/OTP/UVLO Protection
with Options of No Action, Latch, Retry, or
Hiccup
• Adjustable Load-Line Regulation
• RoHS Compliant 5mmx5mm QFN-40
APPLICATIONS
• Server Core Voltage
• Graphic Card Core Regulators
• Telecom and Networking Systems
• Base Stations
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.
For MPS green status, please visit the MPS website under Quality
Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MP2953B Rev. 1.01
www.MonolithicPower.com
1
10/9/2015
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