LTC7149 datasheet(2/26 Pages) LINER

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LTC7149

7149fa

For more information www.linear.com/LTC7149

ABSOLUTE MAXIMUM RATINGS

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

(Note 1)

ORDER INFORMATION

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.

PIN CONFIGURATION

9 10

TOP VIEW

SVOUT–

UFD PACKAGE

28-LEAD (4mm

× 5mm) PLASTIC QFN

11 12 13

28 27 26 25 24

VOUT–

VIN

RUN

GND

MODE/SYNC

PGOOD

BOOST

INTVCC

EXTVCC

ITH

TJMAX = 125°C, θJA = 43°C/W, θJC = 3.4°C/W

EXPOSED PAD (PIN 29) IS SVOUT–, MUST BE SOLDERED TO PCB

TOP VIEW

FE PACKAGE

28-LEAD PLASTIC TSSOP

VOUT–

VIN

RUN

GND

MODE/SYNC

PGOOD

PGDFB

SVOUT–

VINREG

BOOST

INTVCC

EXTVCC

ITH

ISET

VOUTSNS

SVOUT–

TJMAX = 125°C, θJA = 30°C/W, θJC = 5°C to 10°C/W

EXPOSED PAD (PIN 29) IS SVOUT–, MUST BE SOLDERED TO PCB

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.

http://www.linear.com/product/LTC7149#orderinfo

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