LTC1706-82
8
170682fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2000
LT/TP 1002 1K REV A • PRINTED IN USA
TYPICAL APPLICATIO
U
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LTC1628/LTC1628-PG Dual High Efficiency, 2-Phase Sync Step-Down Controller Constant Freq, Standby, 5V and 3.3V LDOs, 3.5V ≤ V
IN
≤ 36V
LTC1629/LTC1629-PG PolyPhase
®
High Efficiency Step-Down DC/DC Controller Expandable Up to 12 Phases, Up to 200A, Remote Sense Diff Amp
LTC1702/LTC1703 Dual High Efficiency, 2-Phase Sync Step-Down Controller 550kHz, 25MHz GBW, No R
SENSE
TM
, 2.7V ≤ V
IN
≤ 7V
LTC1706-81 VID Voltage Programmer with Desktop Code VRM 8.2-VRM 8.4, V
OUT
Range: 1.3V to 3.5V
LTC1709/LTC1709-8 2-Phase Sync Step-Down Controller with 5-Bit Desktop VID 4V ≤ V
IN
≤ 36V, PLL, 36-Pin SSOP, Current Mode Operation
LTC1735 High Efficiency Sync Step-Down Controller Burst Mode Operation, 16-Pin Narrow SSOP, Fault Protection,
3.5V ≤ V
IN
≤ 36V
LTC1736 High Efficiency Sync Buck Controller with 5-Bit Mobile VID GN-24, Power Good, Output Fault Protection, 3.5V ≤ V
IN
≤ 36V
LTC1772 SOT-23 Low Voltage Step-Down Controller 6-Pin SOT-23, 2.5V ≤ V
IN
≤ 10V, 550kHz, Burst Mode
®
Operation
LTC1929/LTC1929-PG 2-Phase Sync Step-Down Controller Current Mode Operation, I
OUT
Up to 40A, 3.5V ≤ V
IN
≤ 36V
LTC3732 3-Phase, 5-Bit VID, Synchronous Step-Down Controller I
OUT
≤ 60A, VRM9.0/9.1 Compatible, 600kHz per Phase Operation,
Integtrated MOSFET Drivers.
Burst Mode and PolyPhase are registered trademarks of Linear Technoogy Corporation. No R
SENSE
is a trademark of Linear Technology Corporation.
1706-82 TA02
RUN/SS
SENSE1
+
SENSE1
–
EAIN
PLLFLTR
PLLIN
PHASMD
I
TH
SGND
V
DIFFOUT
V
OS
–
V
OS
+
SENSE2
–
SENSE2
+
RUN/SS
SENSE1
+
SENSE1
–
EAIN
PLLFLTR
PLLIN
PHASMD
I
TH
SGND
V
DIFFOUT
V
OS
–
V
OS
+
SENSE2
–
SENSE2
+
CLKOUT
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
AMPMD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
V
IN
12V
V
OUT
1.10V TO
1.85V
70A
VID0
VID1
VID2
VID3
VID4
1
2
3
4
7
V
CC
LTC1706-82
GND
9
5
10
6
V
IN
: 12V
V
OUT
: 1.1V TO 1.85, 70A
M1 TO M12: FDS7760A
L1 TO L4: 1µH SUMIDA CEPH149-IROMC
D7 TO D10: CENTROL CMDSH-3TR
C
OUT
: KEMET T510X477M006AS
FB
SENSE
FROM
µP
CLKOUT
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
AMPMD
10Ω
M7
M10
M11
M8
M9
M6
M5
M4
M1
10Ω
M2
M3
GND
150µF, 16V
× 2
GND
150µF, 16V
× 2
× 3
470µF, 6.3V
KEMET CAP
× 3
470µF, 6.3V
KEMET CAP
D3
MBRS
340T3
D2
MBRS
340T3
D1
MBRS
340T3
M12
L4
0.003Ω
L1
L2
L3
0.003Ω
0.003Ω
0.003Ω
D4
MBRS
340T3
0.47µF
0.47µF
5V
5V
LTC1629
LTC1629
0.47µF
0.33µF
0.33µF
OPTIONAL SYNC
CLOCK IN
0.01µF
47k
24k
10k
47pF
75k
100pF
6800pF
V
DIFFOUT
V
OS
–
V
OS
+
V
DIFFOUT
V
OS
–
V
OS
+
1000pF
1000pF
1000pF
1000pF
100pF
0.47µF
1µF
25V
1µF
25V
22µF
6.3V
22µF
6.3V
1µF
1nF
6800pF
47k
1µF
+
+
+
+
+
+
D9
D10
D7
D8
VID Controlled High Current 70A 4-Phase Power Supply
