IRDC3046
3
Rev. 1.0
05/22/02
www.irf.com
The top side (component) layer for IRU3046 Eval board
is shown in Figure 2. The input capacitors are all located
close to the MOSFETs. All the decoupling capacitors,
charge pump capacitor and feedback components are
located close to IC. The two current sense resistor lo-
cated close to inductors and they are located symmetri-
cal to the output. The feedback resistors are tied to the
output voltage at the point of regulation.
The PCB is 4-layers board, one layer is dedicated to
Power GND and the analog GND is kept separated from
the PGND and it is connected at a single point.
LAYOUT
Figure 2 - Top layer of evaluation-board for IRU3046.