DESCRIPTION

The MP2884A is a digital, multi-phase, pulsewidth modulation (PWM) controller with digital

PWM-VID interface compatible with NVIDIA’s

Open VReg specification. The MP2884A can

work with MPS’s Intelli-Phase products to

complete the multi-phase voltage regulator (VR)

solution with minimal external components. The

MP2884A can be configured with up to 4-phase

operation.

The MP2884A 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 MP2884A can

monitor and report the output current through

the CS output from the Intelli-Phase products.

The MP2884A 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

power-loop control method for both steady state

and load transient, the power loop

compensation is very easy to configure.

The MP2884A is available in a QFN-40

(5mmx5mm) package.

FEATURES

 Programmable Multi-Phase up to Four

Phases

 PWM-VID Interface Compatible with NVIDIA

Open VReg Specification

 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

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