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LTM8042/LTM8042-1
APPLICATIONS INFORMATION
TO LED STRING
V IN
C OUT
V IN
LED +
C VCC
V CC
BSTIN/BKLED –
C IN
TG
LED +
BSTOUT/BKIN
GND
TGEN
CTL
80421 F03
GND
R T
THERMAL VIAS TO GROUND PLANE
Figure 3. Suggested Layout for Buck Mode
TO LED STRING
C OUT1
C OUT2
TO LED STRING
V IN
C IN
LED +
C VCC
V CC
BSTIN/BKLED –
TG
BSTOUT/BKIN
LED +
TGEN
CTL
80421 F04
GND
R T
THERMAL VIAS TO GROUND PLANE
Figure 4. Suggested Layout for Buck-Boost Mode
80421fa
19
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