FAN5400_11 Datasheet, PDF (35/37 Pages) Fairchild Semiconductor – FAN5400 / FAN5401 / FAN5402 / FAN5403 / FAN5404 / FAN5405 USB-Compliant Single-Cell Li-Ion Switching Charger

PCB Layout Recommendations
Bypass capacitors should be placed as close to the IC as
possible. In particular, the total loop length for CMID should
be minimized to reduce overshoot and ringing on the SW,
PMID, and VBUS pins. All power and ground pins must be
routed to their bypass capacitors using top copper if
possible. Copper area connecting to the IC should be
maximized to improve thermal performance.
Figure 51. PCB Layout Recommendations
© 2009 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.7
35
www.fairchildsemi.com