LTC1629/LTC1629-PG
U
TYPICAL APPLICATIO S
OPTIONAL
SYNC
CLOCK IN
L1
0.003Ω
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1000pF
RUN/SS
SENSE1
SENSE1
EAIN
CLKOUT
TG1
+
–
0.33µF
0.47µF
D7
M1
M2
M3
M4
3
D1
MBRS
340T3
SW1
8.06k, 1%
4
BOOST1
10Ω
1µF
5
PLLFLTR
V
IN
BG1
6
LTC1629
0.33µF
47k
PLLIN
7
3X470µF, 6.3V
KEMET CAP
5V
PHASMD
EXTV
100pF
6800pF
25.5k, 1%
CC
1µF,25V
22µF
6.3V
8
2X150µF
16V
GND
I
INTV
TH
SGND
CC
9
V
OUT1
3.3V/90A
PGND
BG2
10
11
12
13
14
V
V
V
DIFFOUT
–
BOOST2
SW2
OS
D2
MBRS
340T3
D8
470pF
+
OS
–
+
SENSE2
SENSE2
TG2
0.47µF
M5
M6
M7
M8
AMPMD
1000pF
L2
L3
0.003Ω
24k
75k
0.003Ω
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1000pF
RUN/SS
SENSE1
SENSE1
EAIN
CLKOUT
TG1
+
–
0.47µF
M9
M10
M11
M12
3
D3
MBRS
340T3
SW1
4
47pF
D9
BOOST1
10Ω
1µF
10k
1nF
5
PLLFLTR
V
IN
BG1
6
LTC1629
3X470µF, 6.3V
PLLIN
0.01µF
7
5V
PHASMD
EXTV
CC
1µF,25V
22µF
6.3V
8
2X150µF
16V
GND
I
INTV
TH
SGND
CC
KEMET CAP
9
100pF
V
IN
12V
PGND
BG2
10
11
12
13
14
NC
V
V
V
DIFFOUT
–
BOOST2
SW2
OS
D4
MBRS
340T3
D10
+
OS
–
+
SENSE2
SENSE2
TG2
0.47µF
M13
M14
M15
M16
AMPMD
1000pF
L4
L5
0.003Ω
0.003Ω
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1000pF
RUN/SS
SENSE1
SENSE1
EAIN
CLKOUT
TG1
+
–
0.47µF
M17
M18
M19
M20
3
D5
MBRS
340T3
SW1
4
47pF
D11
BOOST1
10Ω
1µF
10k
1nF
5
PLLFLTR
V
IN
BG1
6
LTC1629
3X470µF, 6.3V
PLLIN
0.01µF
7
5V
PHASMD
EXTV
CC
1µF,25V
22µF
6.3V
8
2X150µF
16V
GND
I
INTV
TH
SGND
CC
KEMET CAP
9
100pF
NC
PGND
BG2
10
11
12
13
14
V
V
V
DIFFOUT
–
BOOST2
SW2
OS
D6
MBRS
340T3
D12
+
OS
–
+
SENSE2
SENSE2
TG2
0.47µF
M21
M22
M23
M24
AMPMD
1000pF
L6
0.003Ω
V : 12V
IN
MI – M24: FDS6680A
OUTPUT CAPACITORS: KEMET T510X477M006AS
V
: 3.3V/90A
L1 – L6: 1µH PANASONIC ETQP6F1R0S
D7 – D12: CENTROL CMDSH-3TR
OUT
1629 TA03
SWITCHING FREQUENCY = 220kHz
Figure 11. High Current 3.3V/90A 6-Phase Application
26
Linear [ Linear ]
