Datasheet

LTC3619B
15
3619bfb
Figure 3a. LTC3619B Layout Diagram (See Board Layout Checklist)
applicaTions inForMaTion
V
IN
RUN2 RUN1
LTC3619B
V
FB2
SW2
SW1
V
FB1
C
F2
C
F1
GNDRLIM
V
IN
2.5V TO 5.5V
V
OUT2
V
OUT1
3619B F03a
R3 R1
R4
L2 L1
R2
C
OUT2
C1
C
OUT1
BOLD LINES INDICATE HIGH CURRENT PATHS
PGOOD1PGOOD2
R
LIM
C
LIM
Figure 3b. LTC3619B Suggested Layout
3619B F03b
V
IN
V
IN
SW2
PGOOD2
RUN2
V
FB2
SW1
PGD1
RLIM
RUN1
V
FB1
C
IN
V
OUT1
V
OUT2
C
OUT1
C
OUT2
GND
GND
L2
L1
V
IN
VIA
GND VIA
VIA TO V
OUT2
VIA TO V
OUT1
R3 R1
R4 R2
C
F2
R
LIM
C
LIM
C
F1