Datasheet

LTC3890
33
3890fc
TYPICAL APPLICATIONS
MTOP2
SENSE1
+
SENSE1
–
V
FB1
TRACK/SS2
ITH2
V
FB2
SENSE2
–
SENSE2
+
ITH1
TRACK/SS1
I
LIM
PHSMD
CLKOUT
PLLIN/MODE
EXTV
CC
RUN1
RUN2
FREQ
PGOOD2
PGOOD1
BG1
C
ITH1A
100pF
C
ITH1
470pF
C
SS1
0.01µF
C1
1nF
C
OUT1
330µF
R
A1
10.5k
R
ITH1
34.8k
R
B1
100k
R
RUN
1000k
R
MODE
100k
MTOP1, MTOP2, MBOT1, MBOT2: RJK0651DPB
L1, L2: COILCRAFT SER1360-802KL
C
OUT1
, C
OUT2
: SANYO 10TPE330M
D1, D2: DFLS1100
D1
D2
LTC3890
R
SENSE1
10mΩ
R
SENSE2
10mΩ
L1
8µH
L2
8µH
MBOT1
TG1
MTOP1
V
OUT1
8.5V
6A
V
IN
9V TO 60V
3890 TA03
INTV
CC
100k
C
B1
0.1µF
SW1
SW2
BOOST1
C
B2
0.1µF
BOOST2
V
IN
INTV
CC
PGND
TG2
BG2
C
OUT2
330µF
C
INT
4.7µF
C
IN
220µF
MBOT2
C2
1nF
C
ITH2
100pF
V
OUT
INTV
CC
V
IN
SGND
R
FREQ
41.2k
High Efficiency 8.5V Dual-Phase Step-Down Converter
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