參數(shù)資料
型號: LTC1871EMS-1#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO10
封裝: PLASTIC, MSOP-10
文件頁數(shù): 12/36頁
文件大?。?/td> 523K
代理商: LTC1871EMS-1#TR
LTC1871-1
2
18711fb
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
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
(Note 1)
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
TJMAX = 125°C, θJA = 120°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC1871EMS-1#PBF
LTC1871EMS-1#TRPBF
LTCTV
10-Lead Plastic MSOP
–40°C to 85°C
LTC1871IMS-1#PBF
LTC1871IMS-1#TRPBF
LTCTV
10-Lead Plastic MSOP
–40°C to 125°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC1871EMS-1
LTC1871EMS-1#TR
LTCTV
10-Lead Plastic MSOP
–40°C to 85°C
LTC1871IMS-1
LTC1871IMS-1#TR
LTCTV
10-Lead Plastic MSOP
–40°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
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,
I-Grade (Note 2)
550
1000
μA
Burst Mode Operation, No Load
VMODE/SYNC = 0V, VITH = 0V (Note 5)
250
500
μA
VMODE/SYNC = 0V, VITH = 0V (Note 5),
I-Grade (Note 2)
250
500
μA
Shutdown Mode
VRUN = 0V
10
20
μA
VRUN = 0V, I-Grade (Note 2)
10
20
μA
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 5V, VRUN = 1.5V, RFREQ = 80k, VMODE/SYNC = 0V, unless otherwise specied.
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