MP2953B

NOT RECOMMENDED FOR NEW DESIGNS

6-Phase Digital Multi-Phase Controller With PMBus interface for VR12.5

ALTERNATIVE PART

NRFND Datasheet

MP2953B continues to be in production for existing customers. Please consider this alternative for new designs:

MP2965

Dual-Loop, Digital, Multi-Phase Controller with PMBus Interface for VR13.HC/AVSBUS

Features & Benefits

Multi-Phase, Dual Output, Digital Controller
Intel VR13.HC/IMVP9 Compliant
PMBus/I²C and AVSBUS Compliant
Switching Frequency up to 3MHz
Pin Programmable for PMBus or Boot-Up Voltage
Built-In EEPROM to Store Custom Configurations
AutomaticLoopCompensation
Fewer External Components than a Conventional Analog Controller
Overshoot Reduction with Non-Linear Control
Flexible Phase Assignment for Dual Rails
Auto Phase-Shedding to Improve Overall Efficiency
Phase-to-Phase Active Current Balancing with Programmable Offsets for Thermal Balance
Digital Load-Line Regulation
Detection for Intelli-Phase MOSFET Fault Type and Auto-Record to EEPROM
Supports 3-Bit PVID Mode
Supports Over-Clocking Mode
Line-Floating Detection
Input and Output Voltage, Current, and Power Monitoring
Regulator Temperature Monitoring
UVLO, OVP, UVP, OCP, and OTP with No Action, Latch, Retry, or Hiccup Options
Supports PMBus Write or Read Protection with Password or Pin Set
Available in an RoHS-Compliant QFN-48 (6mmx6mm) Package

… and many more!

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.

Features & Benefits

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