Datasheet

LTC1871-7
31
18717fd
Typical applicaTions
Automotive SEPIC Converter
RUN
I
TH
FB
FREQ
MODE/SYNC
SENSE
INTV
CC
GATE
1
2
3
4
5
10
8
7
LTC1871-7
V
IN
9
Q6
FMMT451
T1
VP5-0155
6
GND
R47
133k
1%
R59
0.005Ω
1W
1%
Q9
Si4486EY
SO-8
R61
12.4k
1%
R60
124k
1%
CR22
1N4148
CR21
MBR10100
C47
6800pF
C49
4.7µF
C50
4µF
X7R
C46
100pF
V
BATT
8V TO 25V
R45
33.2k
R43
13.3k
1%
R37
75k
1%
R46
47k
CR4
BZX84C15V
1 12
4
•
•
9
2 11
5
•
•
8
3 10
6
•
•
7
+
C51
150µF
35V
18717 TA04
C52
4.7µF
X7R
×2
C53
22µF
16V
X5R
×2
C57
10µF
X5R
(OPTIONAL
HF FILTER)
C55
4.7µF
16V
X7R
×2
V
OUT
13.5V
3A
L7
150Ω 3A
BEAD 1B
(OPTIONAL HF FILTER)
+