TPS54329 Datasheet, PDF (16/24 Pages) Texas Instruments – 4.5V to 18V Input, 3-A SYNCHRONOUS STEP DOWN CONVERTER

TPS54329
SLVSAZ6A – SEPTEMBER 2011 – REVISED MARCH 2012
www.ti.com
VIN
VIN
VIN
INPUT
HIGH FREQENCY
BYPASS BYPASS
CAPACITOR CAPACITOR
POWER
GROUND
SW node copper pour
area on internal or
bottom layer
VIA to Power Ground Plane
VIA to SW Copper Pour on Bottom
or Internal Layer
BOOST
CAPACITOR
ANALOG
GROUND
TRACE
VBST
VIN
SW
GND
OUTPUT
INDUCTOR
POWER
GROUND
SS
EN
VREG5
VFB
EXPOSED
THERMAL PAD
AREA
FEEDBACK
RESISTORS
TO ENABLE
CONTROL
BIAS
CAP
SLOW
START
CAP
Connection to
POWER GROUND
on internal or
bottom layer
VOUT
OUTPUT
FILTER
CAPACITOR
Figure 16. PCB Layout
16
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