LTC3869-2_15 Datasheet, PDF (28/42 Pages) Linear Technology – Dual, 2-Phase Synchronous Step-Down DC/DC Controllers

LTC3869/LTC3869-2
Applications Information
TK/SS1
I_TH1
PGOOD
LTC3869
V_FB1
SENSE1⁺
TG1
SENSE1^–
SW1
FREQ
I_LIM
f_IN
MODE/PLLIN
RUN1
RUN2
SGND
SENSE2^–
SENSE2⁺
BOOST1
BG1
V_IN
PGND
EXTV_CC
INTV_CC
BG2
V_FB2
I_TH2
TK/SS2
BOOST2
SW2
TG2
R_PU2
V_PULL-UP
PGOOD
L1
R_SENSE
C_B1
C_VIN
C_INTVCC
C_B2
M1
M2
1µF
R_IN
CERAMIC
D1
C_OUT1
V_IN
C_IN
1µF
CERAMIC
M3
M4
L2
C_OUT2
D2
R_SENSE
3869 F11
V_OUT1
GND
V_OUT2
Figure 11. Recommended Printed Circuit Layout Diagram
28
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