sc1402 Semtech Corporation, sc1402 Datasheet - Page 15

• Manufacturer Part Number: sc1402
• Description: Multi-output, Low-noise Power Supply Controller For Notebook Computers
• Manufacturer: Semtech Corporation

PCB Layout
As with any high frequency switching regulator it is advisable to practice a careful layout strategy. This includes
keeping loop area as small as possible. Properly decoupling lines that pull large amounts of current in short peri-
ods of time. To keep loop area small always use a ground plane and if possible split the plane in two areas, signal
GND and power GND then tie the two together at one point. Be sure that high current paths have low inductance
by making track widths wide where possible. We recommend the following layout for the SC1042 shown below.
This layout has been optimized for having tight loop areas and bypassing the SC1402 properly.
© 2000 SEMTECH CORP.
December 15, 2000
Multi-Output, Low-Noise Power Supply
Controller for Notebook Computers
652 MITCHELL ROAD
NEWBURY PARK CA 91320
SC1402
15