LTC3788-1 Datasheet, PDF (24/28 Pages) Linear Technology – 2-Phase, Dual Output Synchronous Boost Controller

LTC3788-1
APPLICATIONS INFORMATION
SENSE1^–
SENSE1⁺
PGOOD1
SS1
SW1
TG1
LTC3788-1
BOOST1
ITH1
BG1
VFB1
VBIAS
PGND
FREQ
EXTV_CC
f_IN
PLLIN/MODE INTVCC
SGND
RUN1
RUN2
BG2
VFB2
BOOST2
ITH2
TG2
SW2
SS2
SENSE2⁺
SENSE2^–
V_PULL-UP
C_B1
C_B2
L1 RSENSE1
M1
+
M2
V_OUT1
GND
V_IN
M3
+
M4
L2 RSENSE2
V_OUT2
37881 F07
Figure 7. Recommended Printed Circuit Layout Diagram
24
V_IN
R_IN
C_IN
R_SENSE1
L1
SW1
V_OUT1
C_OUT1
R_L1
BOLD LINES INDICATE
HIGH SWITCHING
CURRENT. KEEP LINES
TO A MINIMUM LENGTH.
R_SENSE2
L2
SW2
V_OUT2
C_OUT2
Figure 8. Branch Current Waveforms
R_L2
37881 F08
37881f