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LTC3732CG датащи(PDF) 2 Page - Linear Technology

номер детали LTC3732CG
подробное описание детали  3-Phase, 5-Bit VID, 600kHz, Synchronous Buck Switching Regulator Controller
PDF  28 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC3732CG датащи(HTML) 2 Page - Linear Technology

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LTC3732
3732f
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
ELECTRICAL CHARACTERISTICS
Topside Driver Voltages (BOOSTN) ............ 38V to –0.3V
Switch Voltage (SWN)................................... 32V to –5V
Boosted Driver Voltage (BOOSTN – SWN) .... 7V to –0.3V
Peak Output Current <1ms (TGN, BGN) ..................... 5A
Supply Voltage (VCC), PGOOD
Pin Voltage .................................................. 7V to –0.3V
RUN/SS, PLLFLTR, PLLIN, FCB Voltages .. VCC to –0.3V
ITH Voltage ................................................ 2.4V to –0.3V
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = VRUN/SS = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
VREGULATED
Regulated Voltage at IN+
(Note 3); VID Code = 11111, VITH = 1.2V
1.067
1.075
1.083
V
q
1.064
1.075
1.086
V
VSENSEMAX
Maximum Current Sense Threshold
VEAIN = 0.5V, VITH Open,
65
75
85
mV
VSENSE1, VSENSE2, VSENSE3– = 0.6V, 1.8V
q
62
75
88
mV
IMATCH
Current Match
Worst-Case Error at VSENSE MAX
–5
5
%
VLOADREG
Output Voltage Load Regulation
(Note 3)
Measured in Servo Loop,
∆ITH Voltage = 1.2V to 0.7V
q
0.1
0.5
%
Measured in Servo Loop,
∆ITH Voltage = 1.2V to 2V
q
–0.1
–0.5
%
VREFLNREG
Output Voltage Line Regulation
VCC = 4.5V to 7V
0.03
%/V
Operating Ambient Temperature Range ....... 0
°C to 70°C
Junction Temperature (Notes 2, 3, 7) ................... 125
°C
Storage Temperature Range ..................–65
°C to 150°C
Lead Temperature (Soldering, 10 sec)
SSOP Package .................................................. 300
°C
Reflow Peak Body Temperature
QFN Package .................................................... 240
°C
(Note 1)
ORDER PART
NUMBER
LTC3732CG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
TOP VIEW
G PACKAGE
36-LEAD PLASTIC SSOP
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
VID1
PLLIN
PLLFLTR
FCB
IN+
IN
DIFFOUT
EAIN
SGND
SENSE1+
SENSE1
SENSE2+
SENSE2
SENSE3
SENSE3+
RUN/SS
ITH
VID2
VID0
PGOOD
BOOST1
TG1
SW1
BOOST2
TG2
SW2
VCC
BG1
PGND
BG2
BG3
SW3
TG3
BOOST3
VID4
VID3
TJMAX = 125°C, θJA = 95°C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ORDER PART
NUMBER
LTC3732CUHF
13 14 15 16
TOP VIEW
UHF PACKAGE
38-LEAD (7mm
× 5mm) PLASTIC QFN
PADDLE IS SGND
(MUST BE CONNECTED TO PCB AND SGND PIN)
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1
IN+
IN
DIFFOUT
EAIN
PADDLE
SGND
SENSE1+
SENSE1
SENSE2+
SENSE2
SENSE3
SENSE3+
TG1
SW1
BOOST2
TG2
SW2
VCC
DRVCC
BG1
PGND
BG2
BG3
SW3
23
22
21
20
9
10
11
12
UNDERSIDE
PADDLE
IS SGND
TJMAX = 125°C, θJA = 34°C/W



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