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LTC7149 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 4A Synchronous Step-Down Regulator - Linear

भाग संख्या LTC7149
समारोह 4A Synchronous Step-Down Regulator
मैन्युफैक्चरर्स Linear 
लोगो Linear लोगो 
पूर्व दर्शन
1 Page
		
<?=LTC7149?> डेटा पत्रक पीडीएफ

LTC7149 pdf
LTC7149
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN Voltage* (Note 3) ................................ 64V to –0.3V
ISET Voltage*............................................. VIN to –0.3V
GND Voltage*............................................. 28V to –0.3V
RUN Voltage*.....................................64V to GND –0.3V
MODE/SYNC, PGOOD Voltage* ..GND + 6V to GND –0.3V
VOUTSNS Voltage*....................................... VIN to –0.3V
RT, PGDFB, ITH, VINREG.....INTVCC +0.3V to (SVOUT− –0.3V)
EXTVCC Voltage* ....................................... 28V to –0.3V
Operating Junction
Temperature Range (Notes 4, 6) ........ –40°C to 125°C
Storage Temperature Range .................. –65°C to 125°C
*All voltage referenced to VOUT–, unless otherwise specified.
PIN CONFIGURATION
TOP VIEW
28 27 26 25 24 23
VOUT– 1
22 SW
VOUT– 2
21 SW
VIN 3
20 SW
VIN 4
RUN 5
29
SVOUT
19 SW
18 BOOST
GND 6
MODE/SYNC 7
PGOOD 8
17 INTVCC
16 EXTVCC
15 ITH
9 10 11 12 13 14
UFD PACKAGE
28-LEAD (4mm × 5mm) PLASTIC QFN
EXPOSED TPJAMDAX(P=IN12259°)CI,SθSJAVO=U4T3,°CM/WUS,TθJBCE=S3O.4L°DCE/RWED TO PCB
VOUT
VOUT
VOUT
VOUT
VOUT
VIN
VIN
RUN
1
2
3
4
5
6
7
8
GND 9
MODE/SYNC 10
PGOOD 11
PGDFB 12
SVOUT13
VINREG 14
TOP VIEW
SV2O9UT
28 SW
27 SW
26 SW
25 SW
24 SW
23 SW
22 SW
21 BOOST
20 INTVCC
19 EXTVCC
18 ITH
17 ISET
16 VOUTSNS
15 RT
FE PACKAGE
28-LEAD PLASTIC TSSOP
TJMAX =
EXPOSED PAD
125°C, θJA
(PIN 29) IS
=SV3O0U°CT–/,WM, UθJSCT=B5E°SCOtoLD1E0R°CE/DWTO
PCB
ORDER INFORMATION http://www.linear.com/product/LTC7149#orderinfo
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC7149EUFD#PBF
LTC7149EUFD#TRPBF 7149
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC7149IUFD#PBF
LTC7149IUFD#TRPBF 7149
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC7149EFE#PBF
LTC7149EFE#TRPBF
LTC7149
28-Lead Plastic TSSOP
–40°C to 125°C
LTC7149IFE#PBF
LTC7149IFE#TRPBF
LTC7149
28-Lead Plastic TSSOP
–40°C to 125°C
Consult ADI Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel//. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
7149fa
2 For more information www.linear.com/LTC7149

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डाउनलोड[ LTC7149 Datasheet.PDF ]


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