Datasheet

LT3742
21
3742fa
8V and 5V Dual Step-Down Converter
L1
6.5µH
R
S1
0.01Ω
V
OUT1
8V
4A
V
IN
14V
V
IN
PG1
R1
1.8k
R1
20k
R1
45.3k
C5
1µF
C2
47µF
C1
10µF
C
C1
1000pF
RUN1
C7
1nF
C2, C4: MURATA GRM32ER71A476K
D1, D2: DIODES INC. PDS1040
L1, L2: WÜRTH ELEKTRONIK 744314650
M1, M2: FAIRCHILD FDS4470
M3
R2
200Ω
R
C1
30k
M1
D1
L2
6.5µH
R
S2
0.01Ω
C3
10µF
V
IN
R3
1.05k
C4
47µF
C
C2
1000pF
RUN2
3742 TA03
C8
1nF
M4
R4
200Ω
R
C2
20k
M2
D2
G1
UVLO
V
IN
L3
22µH
C6
2.2µF
SWB
GND
LT3742
BIAS
SW1
SENSE1
+
SENSE1
–
FB1
PG1
RUN/SS1
V
C1
1
3
24
21
20
19
17
16
18
6
2 5 4
7
10
11
12
14
15
13
G2
SW2
SENSE2
+
SENSE2
–
FB2
PG2
RUN/SS2
V
C2
V
OUT2
5V
4A
PG2
25
Typical applicaTions