EN5322QI
7. When using multiple converters on the
same PCB, try to minimize any crosstalk
between them:
-
Keep the input circuit of any converter
away from the output circuit of any
other converter.
-
Isolate the input circuits from each
other by connecting all the inputs to a
common
point
using
a
star
connection. Add a 2.2 μF bypass
capacitor to the GND plane at the star
connection. Some applications may
benefit from an SMT ferrite bead
between the input capacitor of each
converter and the star connection
point.
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13
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03454
4/24/2009
Rev:A