Datasheet

LTC3855
41
3855f
Typical applicaTions
L1: WURTH 7443551131
L2: WURTH 7443551370
C
OUT1
, C
OUT2
: SANYO 16SVPC39MV
3855 F25
TG1
BOOST1
PGND1
BG1
V
IN
INTV
CC
EXTV
CC
BG2
PGND2
BOOST2
TK/SS1
I
TH1
V
FB1
SGND
V
FB2
I
TH2
TK/SS2
SENSE2
+
SENSE2
–
DIFFP
20k
0.1µF
147k
SENSE1
–
SENSE1
+
RUN1
ITEMP1 ITEMP2
FREQ
MODE/PLLIN
PHSASMD
CLKOUT
SW1
DIFFN DIFFOUT RUN2 I
LIM1
I
LIM2
PGOOD1 PGOOD2
PGOOD1
PGOOD2
NC SW2 TG2
383k
100k
100k
20k
2.2Ω
4.7µF
0.1µF
0.1µF
LTC3855
5.6nF
10k
47pF
4.7µF
s6
100µF
50V
5.6nF
4.99k
0.1µF
0.1µF
47pF
0.1µF
CMDSH-3
M4
BSC093N040LS
M3
BSC093N040LS
M2
BSC093N040LS
M1
BSC093N040LS
CMDSH-3
0.1µF
L1
13µH
L2
3.7µH
24k
24k
18k
8.2k
V
OUT2
5V
10A
V
IN
13V TO
38V
V
OUT1
12V
6A
+
C
OUT1
39µF
16V
s2
+
C
OUT2
39µF
16V
s2
+
Figure 25. 12V, 6A and 5V, 10A Supply with DCR Sensing, f
SW
= 250kHz