IR3084UMTRPBF International Rectifier, IR3084UMTRPBF Datasheet - Page 43

• Manufacturer Part Number: IR3084UMTRPBF
• Description: IC CTLR XPHASE 28-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase™r

Specifications of IR3084UMTRPBF

• Package / Case: 28-MLPQ
• Mounting Type: Surface Mount
• Current - Supply: 14mA
• Voltage - Supply: 9.5 V ~ 16 V
• Operating Temperature: 0°C ~ 100°C
• Applications: Processor
• Package: 28-Lead MLPQ
• Circuit: X-Phase Control IC
• Switch Freq (khz): 150kHz to 1.0MHz
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LAYOUT GUIDELINES
The following layout guidelines are recommended to reduce the parasitic inductance and resistance of the PCB
layout, therefore minimizing the noise coupled to the IC.
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•
•
•
•
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Dedicate at least one middle layer for a ground plane LGND.
Connect the ground tab under the control IC to LGND plane through a via.
Place the following critical components on the same layer as control IC and position them as close as
possible to the respective pins, R
via for the connection.
Place the compensation components on the same layer as control IC and position them as close as possible
to EAOUT, FB and VDRP pins. Avoid using any via for the connection.
Use Kelvin connections for the remote voltage sense signals, VOSNS+ and VOSNS-, and avoid crossing
over the fast transition nodes, i.e. switching nodes, gate drive signals and bootstrap nodes.
Control bus signals, VDAC, RMPOUT, IIN, VBIAS, and especially EAOUT, should not cross over the fast
transition nodes.
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GND
GND
To VIN
LGND PLANE
R
R
C
VCC
REGSET
SS/DEL
C
VCC
REGDRV
REGSET
SS/DEL
VRRDY
ENABLE
REGFB
LGND
OSC
, R
OCSET
To SYSTEM
, R
VDAC
, C
VDAC
, C
VCC
VSETPT
OCSET
VDAC
ROSC
VOSNS-
VID0
VID1
, C
SS/DEL
and R
R
R
R
R
C
SETPT
OCSET
VDAC
OSC
VDAC
CC/DEL
Remote Sense
IR3084U
To Voltage
. Avoid using any
9/14/2005