ltc3729euh-trpbf Linear Technology Corporation, ltc3729euh-trpbf Datasheet - Page 26

• Manufacturer Part Number: ltc3729euh-trpbf
• Description: 550khz, Polyphase, High Efficiency, Synchronous Step-down Switching Regulator
• Manufacturer: Linear Technology Corporation

LTC3729
TYPICAL APPLICATIO S
OPTIONAL
26
CLOCK IN
SYNC
V
V
SWITCHING FREQUENCY = 400kHz
IN
OUT
: 12V
: 3.3V/90A
0.01 F
0.01 F
0.33 F
47pF
47pF
0.33 F
24k
8.06k, 1%
47k
10k
10k
1nF
1nF
75k
470pF
25.5k, 1%
100pF
6800pF
1000pF
1000pF
1000pF
1000pF
1000pF
1000pF
MI – M18: Si7440DP
L1 – L6: 1 H PANASONIC ETQP6F1R0S
D7 – D12: CENTROL CMDSH-3TR
100pF
100pF
NC
NC
10
11
12
13
14
10
11
12
13
14
10
11
12
13
14
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
U
RUN/SS
SENSE1
SENSE1
EAIN
PLLFLTR
PLLIN
PHASMD
I
SGND
V
V
V
SENSE2
SENSE2
RUN/SS
SENSE1
SENSE1
EAIN
PLLFLTR
PLLIN
PHASMD
I
SGND
V
V
V
SENSE2
SENSE2
RUN/SS
SENSE1
SENSE1
EAIN
PLLFLTR
PLLIN
PHASMD
I
SGND
V
V
V
SENSE2
SENSE2
Figure 11. High Current 3.3V/90A 6-Phase Application
TH
TH
TH
DIFFOUT
OS
OS
DIFFOUT
OS
OS
DIFFOUT
OS
OS
–
+
–
+
–
+
LTC3729
LTC3729
LTC3729
+
–
–
+
+
–
–
+
+
–
–
+
CLKOUT
BOOST1
BOOST2
CLKOUT
BOOST1
BOOST2
CLKOUT
BOOST1
BOOST2
EXTV
EXTV
EXTV
PGOOD
PGOOD
PGOOD
INTV
INTV
INTV
PGND
PGND
PGND
SW1
SW2
SW1
SW2
SW1
SW2
BG1
BG2
BG1
BG2
BG1
BG2
TG1
TG2
TG1
TG2
TG1
TG2
V
V
V
CC
CC
CC
CC
CC
CC
IN
IN
IN
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28
27
26
25
24
23
22
21
20
19
18
17
16
15
5V
5V
5V
OUTPUT CAPACITORS: SANYO 6TPB330M
1 F,6.3V
D8
0.47 F
1 F,6.3V
D10
0.47 F
1 F,6.3V
D12
0.47 F
0.47 F
0.47 F
0.47 F
D7
D9
D11
22 F
6.3V
22 F
6.3V
22 F
6.3V
1 F
1 F
1 F
10
10
10
M10
M13
M16
M1
M4
M7
2X150 F
16V
2X150 F
16V
2X150 F
16V
L1
L2
L3
L4
L5
L6
GND
GND
GND
M11
M14
M17
M2
M5
M8
M12
M15
M18
M3
M6
M9
0.003
0.003
0.003
0.003
0.003
0.003
3X330 F, 6.3V
3X330 F, 6.3V
POSCAP
D1
MBRS
340T3
D2
MBRS
340T3
D3
MBRS
340T3
D4
MBRS
340T3
D5
MBRS
340T3
D6
MBRS
340T3
POSCAP
3729 TA03
sn3729 3729fas
3X330 F, 6.3V
POSCAP
V
3.3V/90A
OUT
V
12V
IN