IR3521MTRPBF International Rectifier, IR3521MTRPBF Datasheet - Page 2

• Manufacturer Part Number: IR3521MTRPBF
• Description: IC CTRL XPHASE3 SVID 32-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase3™r

Specifications of IR3521MTRPBF

• Applications: Processor
• Current - Supply: 10mA
• Voltage - Supply: 4.75 V ~ 7.5 V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: *
• Package: 32-Lead MLPQ
• Circuit: X-Phase Control IC
• Switch Freq (khz): 250kHz to 1.5MHz
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATION CIRCUIT
PGOOD
PWROK
ENABLE
SVC
SVD
12V
CVDAC2
RCP2
CCP22
ROCSET2
CCP21
CSS/DEL2
RVCCLDRV
RVDAC2
1
2
3
4
5
6
7
8
RFB22
Q3
RFB21
SVD
PWROK
ENABLE
IIN2
SS/DEL2
VDAC2
OCSET2
EAOUT2
CFB2
RVCCLFB1
Figure 1 – IR3521 Application Circuit
IR3521
CONTROL
IC
RVCCLFB2
CFB1
SS/DEL1
OCSET1
EAOUT1
RFB11
RFB13
VDRP1
VDAC1
Page 2
ROSC
EPAD
PSI_L
IIN1
RFB12
24
23
22
21
20
19
18
17
CVCCL9
ROCSET1
RVDAC1
RCP1
ROSC
CDRP1
RDRP1
CCP12
CCP11
CSS/DEL1
CVDAC1
RTHERMISTOR1
12V
VCCL
PHSIN
PHSOUT
CLKOUT
PSI_L
ISHARE1
VDAC1
EAOUT1
VDD SENSE +
VDD SENSE -
EAOUT2
VDAC2
ISHARE2
VDDNB SENSE -
VDDNB SENSE +
Load Line
Thermistor;
Locate close to
VDD Power Stage
Phase Clock Input to
Last Phase IC of VDD
Power Saving
Indicator to
VDD Phase ICs
To Converters
To Phase IC
VCCL & GATE
DRIVE BIAS
IR3521
3 Wire Analog
Control Bus
to VDD Phase
ICs
3 Wire Analog
Control Bus to
VDDNB Phase
ICs
V3.03
2 wire
Digital
Daisy Chain
Bus to VDD
& VDDNB
Phase ICs
To VDD
Remote
Sense
To VDDNB
Remote
Sense
NTC