MP2932

6-Phase PWM Controller

with 8-Bit DAC Code for VR10 and VR11

MP2932 Rev.1.02

www.MonolithicPower.com

1

4/30/2012

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2012 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2932 is a 6-phase, synchronous buck

switching regulator controller for regulating

microprocessor core voltage. MP2932 also uses

dual edge PWM mode to realize fast load

transient with fewer capacitors.

For meeting the requirement of microprocessor

output voltage drops tightly as load current

increases, output current is sensed to realize

voltage

droop

function.

Accurate

current

balancing is included in MP2932 to provide

current balance for each channel.

8-bit ID input with selectable VR11 code and

extended VR10 code can set output voltage

dynamically.

FEATURES

 2-, 3-, 4-, 5- or 6-phase Operation

 Channel-Current Balancing

 Voltage Droop vs. Load Current

 Precision Resistor or DCR Current Sensing

 Adjustable Switching Frequency

 Over Current Protection

 Available in a 48-pin QFN6x6 Package

APPLICATIONS



Power Modules



Desktop, Server, Core Voltage



POLs (Memory)

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION (6-PHASE BUCK CONVERTER)

DAC

MP2932

REF

PWM3

PWM4

TM

ISEN4-

ISEN3+

ISEN3-

PWM2

ISEN2+

ISEN2-

PWM1

ISEN1+

ISEN1-

OFS

FS

SS

ISEN4+

5V

GND

Vin

IOUT

OVP

VRSEL

ID0

ID1

ID2

ID3

ID4

ID5

ID6

ID7

VR_ RDY

VTT

EN_VTT

RGND

VSEN

VDIFF

IDROOP

FB

COMP VCC

5V

SD

BST

SW

VCC

PWM

GND

Intelli-phase

5V

Vin

Vin

EN

BST

SW

VCC

PWM

GND

5V

Vin

Vin

EN

BST

SW

VCC

PWM

GND

5V

Vin

Vin

EN

BST

SW

VCC

PWM

GND

5V

Vin

EN

EN_PWR

Vin

VR_ FAN

ROUT

VR_HOT

PWM5

ISEN5-

ISEN5+

PWM6

ISEN6-

ISEN6+

BST

SW

VCC

PWM

GND

5V

Vin

EN

Vin

BST

SW

VCC

PWM

GND

5V

Vin

EN

Intelli-phase

Intelli-phase

Intelli-phase

Intelli-phase

Intelli-phase