nx2113 Microsemi Corporation, nx2113 Datasheet - Page 17

• Manufacturer Part Number: nx2113
• Description: 300khz & 600khz Synchronous Pwm Controller With Programmable Bus Uvlo
• Manufacturer: Microsemi Corporation

NX2113/2113A
reduce the ESR replace the single input capacitor with
two parallel units. The feedback part of the system should
be kept away from the inductor and other noise sources,
and be placed close to the IC. In multilayer PCB use
one layer as power ground plane and have a control cir-
cuit ground (analog ground), to which all signals are ref-
erenced.
The goal is to localize the high current path to a
separate loop that does not interfere with the more sen-
sitive analog control function. These two grounds must
be connected together on the PC board layout at a single
point.
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Rev. 2.0
11/18/05