IR3521M ,A full featured and flexible way to implement a complete AMD SVID power solution. ..
IR3522 , XPHASE3TM DDR & VTT CONTROL IC
IR3522M ,The IR3522 Control IC combined with IR3506 xPHASE3 Phase ICs implements a full featured DDR3 power solution. IR3522 DATA SHEET TM XPHASE3 DDR & VT ..
IR3522MTRPBF ,The IR3522 Control IC combined with IR3506 xPHASE3 Phase ICs implements a full featured DDR3 power solution. IR3522 DATA SHEET TM XPHASE3 DDR & VT ..
IR3527M ,A full featured and flexible way to implement multiphase power solutions. ..
IR3529M ,A full featured and flexible way to implement power solutions for the latest high performance CPUs and ASICs. IR3529 DATA SHEET TM XPHASE3 PHASE IC DESCRIPTION TMThe IR3529 Phase IC ..
IS42S16400B1-7T , 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM
IS42S16400B-6T , 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM
IS42S16400B-6TLI , 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM
IS42S16400C1-6TL , 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM
IS42S16400C1-7T , 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM
IS42S16400C1-7TL , 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM
IR3521M
A full featured and flexible way to implement a complete AMD SVID power solution.
International
TOR Rectifier IR3521
DATA SHEET
XPHASE3TM AMD SVID CONTROL IC
DESCRIPTION
The IR3521 Control IC combined with an xPHASE3TM Phase IC provides a full featured and flexible way to
implement a complete AMD SVID power solution. It provides outputs for both the VDD core and VDDNB
auxiliary planes required by the CPU. The IR3521 provides overall system control and interfaces with any
number of Phase ICs each driving and monitoring a single phase. The xPHASE3TM architecture results in a
power supply that is smaller, less expensive, and easier to design while providing higher emciency than
conventional approaches.
FEATURES
. 2 converter outputs for the AMD processor VDD core and VDDNB auxiliary planes
. Supports High Speed (HS) IZC Serial communications
. PSI_L serial commands are communicated to a programmable number of phase ICs
o 0.5% overall system set point accuracy
. High speed error amplifiers with wide bandwidth of 20MHz and fast slew rate of 10V/us
q Remote sense amplifiers provide differential sensing and require less than 50uA bias current
q Programmable Dynamic VID Slew Rates
. Programmable VID Offset (VDD output only)
. Programmable output impedance (VDD output only)
. Programmable Dynamic oc for |DD_Spike
. Programmable per phase switching frequency of 250kHz to 1.5MHz
. Hiccup over current protection with delay during normal operation
. Central over voltage detection and communication to phase ICs through IIN (ISHARE) pin
. OVP disabled during dynamic VID down to prevent false triggering
. Over voltage signal to system with over voltage detection during powerup and normal operation
. Detection and protection of open remote sense lines
. Gate Drive and IC bias linear regulator control with programmable output voltage and UVLO
. Small thermally enhanced 32L MLPQ (5mm x 5mm) package
ORDERING INFORMATION
Device Package Order Quantity
IR3521MTRPBF 32 Lead MLPQ (5 x 5 mm body) 3000 per reel
IR3521MPBF (Samples Only) 32 Lead MLPQ (5 x 5 mm body) 100 piece strips
Page 1 V3.03
International
OR Rectifier
APPLICATION CIRCUIT
12VD C]
CVCCL9
RVCCLFBI RVDCLFB2
RVCCLDRV <:|
PGOOD = CC]
N _ CD a: ts, to .n
D " N N N N N N I C.
y, 8 i E 6' E S S l
m f) g 8 y E gr g EPAD Ill
n y > E U
SVD 1 SVD PSI_L 24 ROSC <3
PWROK 2 PWROK ROSC 23
ENABLE 3 ENABLE VDRP1 22
IR3521 21
llN2 IIN1 <
CSS/DELZs CONTROL CSSIDELI
CVDAC2 RVDACZ: SS/DEL2 IC SS/DELI RVDAC1 CVDAC1
film ROCSEW VDAC2 VDAC1 ROCSET1 III
DCSET2 DCSET1 <
a EAOUT2 + [ [ ' EAOUT1 17 CDRP1 <
E , , E ii F, --HI
E o o o o o o G RDRP1
I > > > > > > LL
' e : <2 2 ' 2 si
RCP2 ccpz1 RFB22 CF82 CF31 erz RCP1 ccpn
RTHERMISTOR1
"it" RFB21 RFB11 "d"
New C]
Figure 1 - IR3521 Application Circuit
IR3521
12V To Converters
To Phase IC
VCCL ' GATE
DRIVE BIAS
PHSIN Phase Clock Input to
Last Phase IC of VDD
PHSOUT , N
Digital
Daisy Chain
Bus to VDD
& VDDNB
Phase ICs
CLKOUT
Power Saving
Indicator to
VDD Phase ICs
ISHARE1
3 Wire Analog
Control Bus
to VDD Phase
EAOUT1 ICs
Load Line NTC
Thermistar;
Locate close to
VDD Power Stage
TO VDD
VDD SENSE'
Remote
VDD SENSE- Sense
EAOUT2 3 Wire Analog
Control Bus to
VDDNB Phase
ISHAREZ
VDDNB SENSE: To VDDNB
VDDNB SENSE ' Remote
Page 2
