Datasheet

26
LTC1629/LTC1629-PG
Figure 11. High Current 3.3V/90A 6-Phase Application
TYPICAL APPLICATIO S
U
V
IN
: 12V
V
OUT
: 3.3V/90A
SWITCHING FREQUENCY = 220kHz
MI – M24: FDS6680A
L1 – L6: 1µH PANASONIC ETQP6F1R0S
D7 – D12: CENTROL CMDSH-3TR
OUTPUT CAPACITORS: KEMET T510X477M006AS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CLKOUT
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
AMPMD
RUN/SS
SENSE1
+
SENSE1
–
EAIN
PLLFLTR
PLLIN
PHASMD
I
TH
SGND
V
DIFFOUT
V
OS
–
V
OS
+
SENSE2
–
SENSE2
+
LTC1629
M7 M8M6M5
0.33µF
0.33µF
OPTIONAL
SYNC
CLOCK IN
8.06k, 1%
47k
25.5k, 1%
1000pF
1000pF
6800pF
470pF
100pF
2X150µF
16V
GND
M3 M4M2M1
D1
MBRS
340T3
D2
MBRS
340T3
0.47µF
22µF
6.3V
+
+
1µF
1µF,25V
5V
10Ω
0.47µF
3X470µF, 6.3V
KEMET CAP
V
OUT1
3.3V/90A
+
L1
0.003Ω
24k 75k
L2
0.003Ω
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CLKOUT
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
AMPMD
RUN/SS
SENSE1
+
SENSE1
–
EAIN
PLLFLTR
PLLIN
PHASMD
I
TH
SGND
V
DIFFOUT
V
OS
–
V
OS
+
SENSE2
–
SENSE2
+
LTC1629
M15 M16M14M13
1nF
10k
1000pF
1000pF
100pF
NC
2X150µF
16V
GND
M11 M12M10M9
D3
MBRS
340T3
D4
MBRS
340T3
0.47µF
1µF
10Ω
0.47µF
3X470µF, 6.3V
KEMET CAP
V
IN
12V
+
L3
0.003Ω
3X470µF, 6.3V
KEMET CAP
L4
0.003Ω
1629 TA03
0.01µF
47pF
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CLKOUT
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
AMPMD
RUN/SS
SENSE1
+
SENSE1
–
EAIN
PLLFLTR
PLLIN
PHASMD
I
TH
SGND
V
DIFFOUT
V
OS
–
V
OS
+
SENSE2
–
SENSE2
+
LTC1629
M23 M24M22M21
1nF
10k
1000pF
1000pF
NC
2X150µF
16V
GND
M19 M20M18M17
D5
MBRS
340T3
D6
MBRS
340T3
0.47µF
D8
D10
D12
1µF
10Ω
0.47µF
D7
D9
D11
+
L5
0.003Ω
L6
0.003Ω
0.01µF
47pF
100pF
22µF
6.3V
+
1µF,25V
5V
22µF
6.3V
+
1µF,25V
5V
++