Datasheet

LTC3839
39
3839fa
APPLICATIONS INFORMATION
Figure 15. Branch Current Waveforms
L2
SW1
R
SENSE2
V
IN
C
IN
R
IN
BOLD LINES INDICATE
HIGH SWITCHING
CURRENT. KEEP LINES
TO A MINIMUM LENGTH.
L1
SW2
3839 F15
R
SENSE1
R
LOAD
C
OUT
Figure 14. Recommended PCB Layout Diagram
RUNSGND
V
RNG
BOOST2
TG2
SW2
DRV
CC2
D
B2
EXTV
CC
V
IN
DRV
CC1
BG1
SW1TG1
BOOST1
PGOODDTR
PGND
PGND
LTC3839
INTV
CC
BG2
C
IN
CERAMIC
CERAMIC
MT2
MB2
MT1
MB1
+
V
IN
V
OUT
L2
L1
C
OUT2
PGND
+
C
OUT1
3839 F14
+
R
SENSE1
R
SENSE2
RT
PHASMD
MODE/PLLIN
CLKOUT
SGND
ITH
TRACK/SS
V
OUTSENSE
–
V
OUTSENSE
+
SENSE1
+
SENSE1
–
SENSE2
+
SENSE2
–
R
T
R
ITH1
LOCALIZED
SGND TRACE
R
FB2
C
ITH1
R
ITH2
C
SS
R
FB1
C
B1
D
B1
C
VIN
C
B2
R
VIN
BOLD LINES INDICATE HIGH SWITCHING CURRENT KEEP LINES TO A MINIMUM LENGTH