LTC3736-2 Linear Technology, LTC3736-2 Datasheet - Page 25

• Manufacturer Part Number: LTC3736-2
• Description: Synchronous Controller
• Manufacturer: Linear Technology

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