lt8410-1 Linear Technology Corporation, lt8410-1 Datasheet - Page 11

• Manufacturer Part Number: lt8410-1
• Description: Ultralow Power Boost Converter With Output Disconnect
• Manufacturer: Linear Technology Corporation

APPLICATIONS INFORMATION
Board Layout Considerations
As with all switching regulators, careful attention must
be paid to the PCB layout and component placement. To
maximize effi ciency, switch rise and fall times are made as
short as possible. To prevent electromagnetic interference
(EMI) problems, proper layout of the high frequency
switching path is essential. The voltage signal of the SW pin
has sharp rising and falling edges. Minimize the length and
area of all traces connected to the SW pin and always use
a ground plane under the switching regulator to minimize
interplane coupling. In addition, the FBP pin and V
are sensitive to noise. Minimize the length and area of all
traces to these two pins is recommended. Recommended
component placement is shown in Figure 3.
REF
pin
V
IN
SHDN
Figure 3. Recommended Board Layout
SHDN
GND
V
SW
CC
CAPACITOR GROUNDS MUST BE
RETURNED DIRECTLY TO IC GROUND
LT8410/LT8410-1
GND
V
V
CAP
FBP
OUT
REF
8410-1 F03
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