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IR3831MPBF Datasheet(PDF) 27 Page - International Rectifier

Part # IR3831MPBF
Description  HIGHLY EFFICIENT INTEGRATED SYNCHRONOUS BUCK REGULATOR FOR DDR APPLICATIONS
PDF  31 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3831MPBF Datasheet(HTML) 27 Page - International Rectifier

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11/05/10
27
IR3831MPbF
PGnd
Vin
AGnd
Power
Ground
Plane
Analog
Ground
plane
Single point
connection between
AGND & PGND,
should be close to
the SupIRBuck, kept
away from noise
sources.
Use separate traces
for connecting Boot
cap and Rocset to the
switch node and with
the minimum length
traces. Avoid big
loops.
Fig. 26c. IR3831 layout considerations – Mid
Layer 1
Fig. 26d. IR3831 layout considerations – Mid
Layer 2
Feedback
trace should
be kept
away form
noise
sources
Fig. 26b. IR3831 layout considerations –
Bottom Layer



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