DESCRIPTION

The MP2886A is a digital, multi-phase, pulsewidth modulation (PWM) controller with a digital

PWM-VID interface that is compatible with

NVIDIA’s Open VReg specification. The

MP2886A works with MPS’ Intelli-Phase

products to complete the multi-phase voltage

regulator (VR) solution with minimal external

components. The MP2886A can be configured

with up to 6-phase operation.

The MP2886A provides an on-chip EEPROM to

store and restore device configurations. Device

configurations and fault parameters can be

easily programmed or monitored via the

PMBus/I2C interface. The MP2886A can monitor

and report the output current through the CS

output from the Intelli-Phase products.

The MP2886A is based on a unique, digital,

multi-phase, non-linear control and provides fast

transient response to the load transient with

minimal output capacitors. With only one powerloop control method for both steady state and

load transient, the power loop compensation is

very easy to configure.

The MP2886A is available in a QFN-40

(5mmx5mm) package.

FEATURES

 Programmable Multi-Phase up to 6 Phases

 PWM-VID Interface Compatible with NVIDIA

 PMBus/I2C Compliant (1MHz Bus Speed)

 Pin Programmable for PMBus Address

 Built-In EEPROM to Store Custom

Configurations

 Switching Frequency Range 200kHz to

5MHz

 Automatic Loop Compensation

 Fewer External Components than A

Conventional Analog Controller

 Best Transient Performance with NonLinear Digital Control

 Flexible Phase Assignment

 Auto-Phase Shedding to Improve Overall

Efficiency

 Phase-to-Phase Active Current Balancing

with Programmable Offsets for Thermal

Balance

 Output Voltage/Current, Input Voltage/

Power Monitoring

 Regulator Temperature Monitoring

 VIN UVLO, Output OVP/UVP, OCP, OTP

with No Action, Latch, Retry, or Hiccup

Mode Options

 Detecting for Intelli-Phase MOSFET Fault

Type and Auto-Record to EEPROM

 Register Map Password Lock

 Digital Load-Line Regulation

 Available in an RoHS Compliant QFN-40

(5mmx5mm) Package

APPLICATIONS

 Graphic Card Core Power

 Server Core Power

 Telecom and Networking Systems

 Base Stations