MP2932GQK-LF-Z Datasheet, PDF (1/23 Pages) MPS Industries, Inc. – 6-Phase PWM Controller with 8-Bit DAC Code for VR10 and VR11

The Future of Analog IC Technology
MP2932
6-Phase PWM Controller
with 8-Bit DAC Code for VR10 and VR11
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)
5V
VTT
VR_ RDY
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
VRSEL
OVP
ROUT
VR_ FAN
VR_HOT
Vin
5V
FB COMP VCC ^DAC
IDROOP
REF
VDIFF
VSEN
RGND
EN_VTT
PWM1
I SEN 1-
ISEN1+
PWM2
I SEN 2-
ISEN2+
MP2932
SD
IOUT
PWM3
I SEN 3-
ISEN3+
PWM4
I SEN 4-
I SEN 4+
PWM5
I SEN 5-
I SEN 5+
EN_PWR
GND
PWM6
I SEN 6-
ISEN6+
TM OFS FS SS
Vin
I nt elli-phas e
Vin
BST
PWM
SW
EN
5V
GND ^VCC
Vin Intelli-phase
Vin
BST
PWM
SW
EN
5V
GND VCC
Vin ^{Intelli-phase}
Vin
BST
PWM
SW
EN
5V
GND VCC
Vin Intelli-phase
Vin
BST
PWM
SW
EN
5V
GND ^VCC
Vin Intelli-phase
Vin
BST
PWM
SW
EN
5V
GND VCC
Intelli-phase
Vin
BST
PWM
SW
EN
5V
GND ^VCC
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.