LTC3736 LINER [Linear Technology], LTC3736 Datasheet - Page 24

• Manufacturer Part Number: LTC3736
• Description: Dual 2-Phase, No RSENSE Synchronous Controller with Output Tracking
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
LTC3736
TYPICAL APPLICATIO S
24
U
R
10 F
IN
V
5V
C
IN
IN
2
V
IN
U
C
IN
BOLD LINES INDICATE
HIGH, SWITCHING
CURRENT LINES.
KEEP LINES TO A
MINIMUM LENGTH
Figure 15. 2-Phase, 550kHz, Dual Output Synchronous DC/DC Converter
+
C
10nF
100pF
220pF
C
C
1 F
C
ITH1A
R
R
ITH1
VIN
SS
59k
59k
U
FB1A
FB2A
W
R
C
220pF
100pF
C
VIN
ITH2B
R
ITH2
15k
ITH1
10
R
187k
FB1B
R
R
15k
ITH2
TRACKA
59k
Figure 14. Branch Current Waveforms
U
22
23
24
R
118k
1
2
3
4
5
9
7
8
6
FB2B
MP1
MP2
SW1
IPRG1
V
I
IPRG2
PLLLPF
SGND
V
PGOOD
V
I
TRACK
TH1
TH2
FB1
IN
FB2
LTC3736EUF
R
TRACKB
118k
MN1
MN2
PGND
SYNC/FCB
SENSE1
SENSE2
25
RUN/SS
PGND
PGND
PGND
SW2
BG1
BG2
TG1
TG2
+
+
21
20
19
18
17
16
15
14
13
12
11
10
MP1
MP2
L1
L2
C
C
OUT1
OUT2
MN1
Si7540DP
MN2
Si7540DP
V
V
+
+
OUT1
OUT2
1.5 H
1.5 H
L1
L2
+
+
C
150 F
3736 F15
C
150 F
OUT2
OUT1
3736 F14
V
2.5V
5A
V
1.8V
5A
OUT1
OUT2
R
R
L1
L2
3736f