SC198 Semtech, SC198 Datasheet - Page 11
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SC198
Manufacturer Part Number
SC198
Description
Dual DC-DC Buck Converter
Manufacturer
Semtech
Datasheet
1.SC198.pdf
(16 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC198AMLTRT
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
Part Number:
SC198MLTRT
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
PCB Layout Considerations
Poor layout can degrade the performance of the DC-DC converter and can be a contributory factor in EMI problems,
ground bounce, thermal issues, and resistive voltage losses. Poor regulation and instability can result.
The following design rules are recommended:
1.
2.
3.
Note:
Control pin routings are not shown.
POWER MANAGEMENT
Applications Information (Cont.)
© 2007 Semtech Corp.
Place the inductor and fi lter capacitors as close to the device as possible and use short wide traces between the
power components.
Route the output voltage feedback path away from inductor and LX node to minimize noise and magnetic
interference.
Use a ground plane to further reduce noise interference on sensitive circuit nodes.
VOUTA
GND
LXA
CinA
CinR
SC198
VIN
11
CinB
LXB
GND
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VOUTB
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SC198