LTC1706-61 Просмотр технического описания (PDF) - Linear Technology
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LTC1706-61 Datasheet PDF : 8 Pages
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LTC1706-61
TYPICAL APPLICATION
VID Controlled High Current 70A 4-Phase Application
OPTIONAL SYNC
CLOCK IN
FROM
µP
1 VID0
2 VID1
5
VCC
6
SENSE
3 VID2 LTC1706-61
4 VID3
7 VID4
GND
9
FB 10
100pF
M1 TO M12: FDS7760A
L1 TO L4: 1µH SUMIDA CEPH149-IROMC
D7 TO D10: CENTROI CMDSH-3TR
COUT: KEMET T510X477M006AS
fSW: 200kHz
1
RUN/SS
28
CLKOUT
0.33µF
2 SENSE1+
27
TG1
3 SENSE1–
26
SW1
1000pF 4
EAIN
25
BOOST1
0.33µF
5
PLLFLTR
6
PLLIN
24
VIN
23
BG1
47k 6800pF
100pF
7
PHASMD
22
EXTVCC
8 ITH LTC1629-6 INTVCC 21
9
SGND
20
PGND
VDIFFOUT
VOS–
10
VDIFFOUT
11 VOS–
19
BG2
18
BOOST2
VOS+
12
1000pF 13
VOS+
SENSE2–
17
SW2
16
TG2
14 SENSE2+
15
AMPMD
24k 75k
L1
5V
0.003Ω
0.47µF
M1
10Ω
M2
1µF
1µF
150µF, 16V
D7
25V
22µF
×2
D8
6.3V +
GND
D1
MBRS
M3
340T3
COUT
470µF, 6.3V
×3
0.47µF
M4
D2
MBRS
M5
M6
340T3
0.003Ω
L2
VOUT
0.8V TO
1.55V
70A
1000pF
47pF
10k
0.01µF
47pF
VDIFFOUT
VOS–
VOS+
1000pF
1
RUN/SS
28
CLKOUT
2 SENSE1+
27
TG1
3 SENSE1–
26
SW1
4
EAIN
25
BOOST1
5
PLLFLTR
6
PLLIN
24
VIN
23
BG1
7
22
PHASMD
EXTVCC
8
LTC1629-6
21
ITH
INTVCC
9
20
SGND
PGND
10
VDIFFOUT
11 VOS–
12 VOS+
13 SENSE2–
19
BG2
18
BOOST2
17
SW2
16
TG2
14 SENSE2+
15
AMPMD
L3
5V
0.003Ω
0.47µF
10Ω
1µF
1µF
D9
25V
D10
22µF
6.3V
M7
M8
150µF, 16V
×2
+
GND
D3
MBRS
340T3
M9
COUT
470µF, 6.3V
×3
VIN
12V
0.47µF
M10
M11 M12
D4
MBRS
340T3
0.003Ω
L4
1706-61 TA04
RELATED PARTS
PART NUMBER
LTC1629-6
LTC3714
LTC3716
LTC3719
LTC3731
DESCRIPTION
PolyPhase® Synchronous Step-Down Controller
Single Phase Synchronous Step-Down Controller with VID
2-Phase Synchronous Step-Down Controller with VID
AMD Opteron CPU Power Supply
3-Phase, 60A Synchronous Step-Down Controller
LTC3733
3-Phase, 60A Synchronous Step-Down Controller for
AMD Opteron Processors
LTC3778
Optional RSENSE Synchronous Step-Down Controller
PolyPhase is a registered trademark of Linear Technology Corporation.
8
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
COMMENTS
Up to 12-Phase Operation, Up to 200A Power Supply
0.6V ≤ VOUT ≤ 1.75V, IOUT ≤ 25A
0.6V ≤ VOUT ≤ 1.75V, IOUT ≤ 40A
0.8V ≤ VOUT ≤ 1.55V, IOUT ≤ 40A
Single IC 60A Solution with Onboard MOSFET Drivers, ±5% Output
Current Matching for Optimum Thermal Performance and Reliability
On-Board VID and MOSFET Drivers, 0.8V ≤ VOUT ≤ 1.55V, IOUT ≤ 60A
4V ≤ VIN ≤ 36V, 0.6V ≤ VOUT ≤ (0.9)VIN, IOUT ≤ 25A
170661f
LT/TP 0603 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2002
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