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LTC3733 Datasheet(PDF) 29 Page - Linear Technology

Part # LTC3733
Description  3-Phase, Buck Controllers for AMD CPUs
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3733 Datasheet(HTML) 29 Page - Linear Technology

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29
LTC3733/LTC3733-1
3733f
TYPICAL APPLICATIO
65A Power Supply for AMD Opteron Processors
VCC
10k
51k
VID1 IN
ON/OFF
30pF
1000pF
S1+
S1–
S2+
5V
S2–
S3–
S3+
VID1
RUN
PLLFLTR
FCB
IN+
IN–
DIFFOUT
LTC3733
EAIN
SGND
SENSE1+
SENSE1–
SENSE2+
SENSE2–
SENSE3–
SENSE3+
SS
ITH
VID2
VID0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
PGOOD
BOOST1
TG1
SW1
BOOST2
TG2
SW2
VCC
BG1
PGND
BG2
BG3
SW3
TG3
BOOST3
VID4
VID3
100pF
VCC
5V
VIN
M1
M2
D1
S1+
S1–
L1
0.002
Ω
220pF
0.1
µF
1k
100pF
22.1k
71.5k
1000pF
1
µF
VID0 IN
VID4 IN
VID3 IN
3733 TA01
VIN: 7V TO 21V
VOUT: 0.8V TO 1.55V, 65A
SWITCHING FREQUENCY: 300kHz
PGOOD
47k
1
Ω
1000pF
VID2 IN
10
µF
0.1
µF
VCC
0.1
µF
0.1
µF
VCC
VCC
VIN
M3
M4
D2
S2+
S2–
L2
0.002
Ω
VIN
M5
M6
D3
S3+
S3–
L3
0.002
Ω
10
µF
6.3V
×3
COUT
VIN
7V TO 21V
VOUT
+
10
µF
35V
×5
CIN
68
µF
25V
+
CIN: SANYO OS-CON 25SP68M
COUT: 330µF/2.5V ×10 SANYO POSCAP 2R5TPE330M9
D1 TO D3: MBRS340T3
L1 TO L3: 0.68
µH SUMIDA CEP125-0R6
M1, M3, M5: HAT2168H
×1 OR IRF7811W ×2 OR Si7860DP ×1
M2, M4, M6: HAT2165H
×2 OR IRF7822 ×2 OR Si7892DP ×2
Block Diagram—6-Phase LTC3731/LTC3733-1 Supply
3-PHASE LTC3731
CLKOUT
CLK
60
°
VIN
VOUT
0.8V TO 1.55V
90A TO 120A
3-PHASE LTC3733-1
PLLIN
3733 TA02



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