TPS54610
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SLVS398F–JUNE 2001–REVISED APRIL 2007
Connect the bias capacitor from the VBIAS pin to analog ground using the isolated analog ground trace. If a
slow-start capacitor or RT resistor is used, or if the SYNC pin is used to select 350-kHz operating frequency,
connect them to this trace.
ANALOG GROUND TRACE
FREQUENCY SET RESISTOR
AGND
RT
SYNC
SLOW START
CAPACITOR
VSENSE
COMP
COMPENSATION
NETWORK
SS/ENA
VBIAS
BIAS CAPACITOR
PWRGD
BOOT
BOOT
CAPACITOR
VIN
VIN
EXPOSED
POWERPAD
AREA
PH
PH
PH
PH
PH
PH
PH
PH
PH
VOUT
VIN
VIN
VIN
PH
VIN
PGND
PGND
PGND
PGND
PGND
OUTPUT INDUCTOR
OUTPUT
FILTER
CAPACITOR
INPUT
BYPASS
CAPACITOR
INPUT
BULK
FILTER
TOPSIDE GROUND AREA
VIA to Ground Plane
Figure 11. Recommended Land Pattern for 28-Pin PWP PowerPAD
10
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