Datasheet

LTC3736-2
25
37362fb
TYPICAL APPLICATIONS
Figures 15. 2-Phase, 550kHz, Dual Output Synchronous DC/DC Converter
Figures 16. 2-Phase, 750kHz, Dual Output Synchronous DC/DC Converter
SGND
PLLLPF
IPRG2
IPRG1
V
FB1
I
TH1
SW1
R
VIN
10Ω
R
ITH2
15k
C
ITH2
220pF
C
SS
10nF
C
IN
10μF
s2
C
VIN
1μF
V
IN
5V
V
IN
C
ITH2B
100pF
R
ITH1
15k
C
ITH1
220pF
C
ITH1A
100pF
R
FB1B
187k
R
FB1A
59k
PGOOD
V
FB2
TRACK
25
I
TH2
TG2
LTC3736EUF-2
PGND
TG1
SYNC/FCB
BG1
PGND
22
21
20
19
18
17
16
15
14
13
12
11
10
23
24
1
2
3
4
5
9
8
7
6
SENSE1
+
MP1
MP2
L1
1.5μH
L2
1.5μH
MN1
Si7540DP
MN2
Si7540DP
RUN/SS
BG2
PGND
PGND
SW2
SENSE2
+
R
TRACKB
118k
R
TRACKA
59k
R
FB2A
59k
R
FB2B
118k
C
OUT2
150μF
C
OUT1
150μF
V
OUT1
2.5V
6A
V
OUT2
1.8V
6A
37362 F15
+
+
SGND
PLLLPF
IPRG2
IPRG1
V
FB1
I
TH1
SW1
R
VIN
10Ω
R
ITH2
22k
C
ITH2
1000pF
C
SS
10nF
C
IN
22μF
C
VIN
1μF
V
IN
3.3V
V
IN
C
ITH2A
100pF
R
ITH1
22k
C
ITH1
1000pF
C
ITH1A
100pF
R
FB1B
187k
R
FB1A
59k
PGOOD
V
FB2
TRACK
PGND
I
TH2
TG2
LTC3736EUF-2
PGND
TG1
SYNC/FCB
BG1
PGND
22
21
20
19
18
17
16
15
14
13
12
11
10
25
23
24
1
2
3
4
5
9
8
7
6
SENSE1
+
MP1
Si3447BDV
MP2
Si3447BDV
L1
1.5μH
L2
1.5μH
MN1
Si3460DV
MN2
Si3460DV
RUN/SS
BG2
PGND
SW2
SENSE2
+
R
TRACKB
118k
R
TRACKA
59k
R
FB2A
59k
R
FB2B
118k
C
OUT2
47μF
s2
C
OUT1
47μF
s2
D1
V
OUT1
2.5V
4A
V
OUT2
1.8V
4A
37362 F16
C
FF1
22pF
L1, L2: VISHAY IHLP-2525CZ-01
D1, D2: OPTIONAL
D2