Datasheet

LTC3868-1
33
38681fd
TYPICAL APPLICATIONS
SENSE1
+
SENSE1
–
SENSE2
–
SENSE2
+
V
FB1
I
TH1
SGND
EXTV
CC
RUN1
RUN2
FREQ
SS2
V
FB2
SS1
PLLIN/MODE
PGOOD1
BG1
SW1
BOOST1
TG1
V
IN
INTV
CC
PGND
TG2
BG2
BOOST2
SW2
C1
1nF
R
B1
28.7k
C
OUT1
, C
OUT2
: SANYO 2RSTPE220M
L1: SUMIDA CDEP105-3R2M
L2: SUMIDA CDEP105-7R2M
MTOP1, MTOP2: RENESAS RJK0305
MBOT1, MBOT2: RENESAS RJK0328
C
F1
56pF
C
ITH1A
220pF
C
SS1
0.01µF
C
SS2
0.01µF
C
ITH1
1000pF
C
INT
4.7µF
C
B1
0.47µF
C
B2
0.47µF
D1
V
IN
12V
D2
LTC3868-1
L1
0.47µH
L2
0.47µH
R
SENSE1
4m
R
SENSE2
4m
MBOT1
MTOP2
MTOP1
MBOT2
38681 TA03a
100k
INTV
CC
C
OUT1
220µF
×2
V
OUT1
1V
8A
V
OUT2
1.2V
8A
C
IN
22µF
C
OUT2
220µF
×2
R
A1
115k
R
A2
115k
R
B2
57.6k
C
F2
56pF
R
FREQ
60k
R
ITH1
3.93k
C2
1nF
I
TH2
C
ITH2
1000pF
C
ITH2A
220pF
R
ITH2
3.43k
High Effi ciency Dual 1V/1.2V Step-Down Converter