TPS54810 | www.ti.com |
SLVS420B − MARCH 2002 − R EVISED FEBRUARY 2005
COMPENSA TION
NETWORK
BOOT
CAPACITOR
VOUT
PH
OUTPUT INDUCTOR
OUTPUT
FILTER
CAPACITOR
ANALOG GROUND TRACE
AGND |
|
|
|
| RT |
VSENSE |
|
| SYNC | ||
COMP |
| SS/ENA | |||
PWRGD |
|
| VBIAS | ||
|
|
|
|
|
|
BOOT |
|
|
|
| VIN |
PH |
| EXPOSED |
|
| VIN |
| POWERP AD |
|
| ||
|
| AREA |
|
|
|
PH |
|
|
|
| VIN |
PH |
|
|
|
| VIN |
PH |
|
|
|
| VIN |
PH |
|
|
| PGND | |
|
|
|
| PGND | |
PH |
|
| |||
PH |
|
| PGND | ||
PH |
|
| PGND | ||
PH |
|
| PGND | ||
FREQUENCY SET RESISTOR
SLOW ST ART
CAPACITOR
BIAS CAP ACITOR
VIN
INPUT INPUT
BYPASS BULK
CAPACITOR FILTER
TOPSIDE GROUND AREA
VIAto Ground Plane
Figure 10. PCB Layout
10