MIC2591B MICREL [Micrel Semiconductor], MIC2591B Datasheet - Page 32

• Manufacturer Part Number: MIC2591B
• Description: Dual-Slot PCI Express Hot-Plug Controller
• Manufacturer: MICREL [Micrel Semiconductor]

March 2005
(GATE pin connection)
Via to signal plane
Figure 15. Suggested PCB Layout for Sense Resistor, Power MOSFET, and Capacitors
W
- DRAWING IS NOT TO SCALE AND NOT ALL PINS SHOWN FOR CLARITY-
*See Table 4 for part numbers and vendors
**Optional components
***Recommended components (variable in value, see Functional Description and Applications Information)
Trace width (W) guidelines given in "PCB Layout Recommendations" section of the datasheet
12V(Slot B) is illustrated in this example. A similar layout is suggested for the 3V supply and both slots
W
Current Flow
to the Load
***C
Via to GND Plane
FILTER
0.1uF
C1
*SENSE RESISTOR
**C
32
GS
**C
MILLER
*POWER MOSFET
GND
S
S
S
G
**R4
15
17
(SO-8)
from the Load
Current Flow
(GATE pin connection)
Via to signal plane
Current Flow
to the Load
Via to GND Plane
W
M9999-033105