Datasheet

LTC3869/LTC3869-2
38
38692fa
For more information www.linear.com/LTC3869
Figure 20. 12V, 6A and 5V, 10A Supply with DCR Sensing, f
SW
= 250kHz
Typical applicaTions
3869 F20
TG1
BOOST
PGND1
BG1
V
IN
INTV
CC
EXTV
CC
BG2
PGND
BOOST2
TK/SS1 I
TH1
V
FB1
SGND V
FB2
I
TH2
TK/SS2 SENSE2
+
SENSE2
–
20k
0.1µF
147k
SENSE1
–
SENSE1
+
RUN1
FREQ
MODE/PLLIN
SW1
RUN2
I
LIM
PGOOD
PGOOD
SW2
TG2
383k
100k
20k
2.2Ω
4.7µF
0.1µF
0.1µF
LTC3869
5.6nF
10k
0.1µF
47pF
4.7µF ×6
100µF 50V
5.6nF
4.99k
0.1µF
47pF
0.1µF
SDM10K45
M4
BSC093N040LS
M3 BSC093N040LS
M2 BSC093N040LS M1 BSC093N040LS
SDM10K45
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
OUT2
39µF 16V ×2
+
C
OUT2
39µF 16V ×2
+
L1: WURTH 7443551131 L2: WURTH 7443551370 C
OUT1
, C
OUT2
: SANYO 16SVPC39MV