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LT3593
APPLICATIONS INFORMATION
Board Layout Considerations
As with all switching regulators, careful attention must
be paid to the PCB layout and component placement. To
prevent electromagnetic interference (EMI) problems,
proper layout of high frequency switching paths is essential.
Minimize the length and area of all traces connected to the
L1
V IN
Switching node pin (SW). Keep the sense voltage pins (CAP
and LED) away from the switching node. Place C2 next to
the CAP pin. Always use a ground plane under the switching
regulator to minimize interplane coupling. Recommended
component placement is shown in Figure 7.
L1
V IN
C1
1
6
D1
D1
4
3
C1
2
7
5
5
2
CTRL
3
4
6
1
CTRL
GND
C2
DFN Package
C2
TSOT-23 Package
3593 F07
GND
Figure 7. Recommended Component Placement
3593f
10
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