LTC3890-3 Datasheet, PDF (31/40 Pages) Linear Technology – 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller

Applications Information
LTC3890-3
ITH1
TRACK/SS1
V_FB1
PGOOD1
R1*
SENSE1⁺
TG1
C1*
SENSE1^–
SW1
LTC3890-3
BOOST1
BG1
FREQ
f_IN
PLLIN/MODE
V_IN
RUN1
RUN2
SGND
SENSE2^–
C2*
SENSE2⁺
R2*
V_FB2
PGND
EXTV_CC
INTV_CC
BG2
BOOST2
ITH2
SW2
TRACK/SS2
TG2
R_PU1
V_PULL-UP
PGOOD1
L1
R_SENSE
C_B1
M1
M2
D1*
C_INTVCC
C_B2
R_IN
C_VIN
1µF
CERAMIC
+
V_IN
C_IN
1µF
CERAMIC
M3
M4
C_OUT1
+
+
C_OUT2
D2*
R_SENSE
L2
*R1, R2, C1, C2, D1, D2 ARE OPTIONAL.
Figure 11. Recommended Printed Circuit Layout Diagram
38903 F11
V_OUT1
GND
V_OUT2
For more information www.linear.com/3890-3
38903f
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