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参数资料
| 型号： | LTC1871IMS#TRPBF-1 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | LEAD FREE, PLASTIC, MSOP-10 |
| 文件页数： | 12/36页 |
| 文件大小： | 354K |
| 代理商： | LTC1871IMS#TRPBF-1 |
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2
LTC1871-1
18711fa
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. VIN = 5V, VRUN = 1.5V, RFREQ = 80k, VMODE/SYNC = 0V, unless otherwise specified.
(Note 1)
VIN Voltage ............................................... – 0.3V to 36V
INTVCC Voltage ........................................... – 0.3V to 7V
INTVCC Output Current ........................................ 50mA
GATE Voltage ........................... – 0.3V to VINTVCC + 0.3V
ITH, FB Voltages ....................................... –0.3V to 2.7V
RUN, MODE/SYNC Voltages ....................... – 0.3V to 7V
FREQ Voltage ............................................– 0.3V to 1.5V
SENSE Pin Voltage ................................... – 0.3V to 36V
Operating Junction Temperature Range (Note 2)
LTC1871E-1 ....................................... – 40
°C to 85°C
LTC1871I-1 ...................................... – 40
°C to 125°C
Junction Temperature (Note 3) ............................ 125
°C
Storage Temperature Range ................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
VIN(MIN)
Minimum Input Voltage
2.5
V
I-Grade (Note 2)
●
2.5
V
IQ
Input Voltage Supply Current
(Note 4)
Continuous Mode
VMODE/SYNC = 5V, VFB = 1.4V, VITH = 0.75V
550
1000
μA
VMODE/SYNC = 5V, VFB = 1.4V, VITH = 0.75V,
●
550
1000
μA
I-Grade (Note 2)
Burst Mode Operation, No Load
VMODE/SYNC = 0V, VITH = 0V (Note 5)
250
500
μA
VMODE/SYNC = 0V, VITH = 0V (Note 5),
●
250
500
μA
I-Grade (Note 2)
Shutdown Mode
VRUN = 0V
10
20
μA
VRUN = 0V, I-Grade (Note 2)
●
10
20
μA
VRUN+
Rising RUN Input Threshold Voltage
1.348
V
VRUN–
Falling RUN Input Threshold Voltage
1.223
1.248
1.273
V
●
1.198
1.298
V
VRUN(HYST)
RUN Pin Input Threshold Hysteresis
50
100
150
mV
I-Grade (Note 2)
●
35
100
175
mV
IRUN
RUN Input Current
160
nA
VFB
Feedback Voltage
VITH = 0.4V (Note 5)
1.218
1.230
1.242
V
●
1.212
1.248
V
VITH = 0.4V (Note 5), I-Grade (Note 2)
●
1.205
1.255
V
IFB
FB Pin Input Current
VITH = 0.4V (Note 5)
18
60
nA
ΔVFB
Line Regulation
2.5V
≤ VIN ≤ 30V
0.002
0.02
%/V
ΔVIN
2.5V
≤ VIN ≤ 30V, I-Grade (Note 2)
●
0.002
0.03
%/V
TJMAX = 125°C, θJA = 120°C/ W
1
2
3
4
5
RUN
ITH
FB
FREQ
MODE/
SYNC
10
9
8
7
6
SENSE
VIN
INTVCC
GATE
GND
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
ORDER PART NUMBER
*MS PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is identified by a label on the shipping container.
LTC1871EMS-1
LTC1871IMS-1
LTCTV
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF
Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
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