LT8705 datasheet(2/24 Pages) LINER

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LT3840

3840fa

For more information www.linear.com/LT3840

pin conFiguraTion

absoluTe MaxiMuM raTings

AUXVIN, VIN, EN and UVLO ....................... –0.3V to 80V

PG.............................................................. –0.3V to 25V

MODE........................................................... –0.3V to 9V

SENSE+ and SENSE–.................................. –0.3V to 60V

SENSE+ to SENSE–...........................................–1V to 1V

OVLO, VC, FB, SYNC, TK/SS and ICTRL....... –0.3V to 6V

(Note 1)

TOP VIEW

FE PACKAGE

28-LEAD PLASTIC TSSOP

AUXSW1

PGND

AUXVIN

SYNC

TK/SS

MODE

OVLO

UVLO

VIN

AUXBST

AUXSW2

INTVCC

BGRTN

BOOST

SENSE–

SENSE+

ICOMP

ICTRL

IMON

GND

θJA = 30°C/W, θJC = 10°C/W

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

13 14 15 16

TOP VIEW

GND

UFE PACKAGE

38-LEAD (4mm × 6mm) PLASTIC QFN

17 18 19

38 37 36 35 34 33 32

AUXVIN

SYNC

TK/SS

MODE

OVLO

INTVCC

BGRTN

BOOST

SENSE–

SENSE+

ICOMP

θJA = 38°C/W, θJC = 4°C/W

EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB

orDer inForMaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3840EFE#PBF

LT3840EFE#TRPBF

LT3840FE

28-Lead Plastic TSSOP

–40°C to 125°C

LT3840IFE#PBF

LT3840IFE#TRPBF

LT3840FE

28-Lead Plastic TSSOP

–40°C to 125°C

LT3840HFE#PBF

LT3840HFE#TRPBF

LT3840FE

28-Lead Plastic TSSOP

–40°C to 150°C

LT3840MPFE#PBF

LT3840MPFE#TRPBF

LT3840FE

28-Lead Plastic TSSOP

–55°C to 150°C

LT3840EUFE#PBF

LT3840EUFE#TRPBF

3840

38-Lead (4mm × 6mm) Plastic QFN

–40°C to 125°C

LT3840IUFE#PBF

LT3840IUFE#TRPBF

3840

38-Lead (4mm × 6mm) Plastic QFN

–40°C to 125°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

Consult LTC Marketing for information on nonstandard lead based finish parts.

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/

Junction Temperature Range

LT3840E (Note 2) .............................. –40°C to 125°C

LT3840I ............................................. –40°C to 125°C

LT3840H............................................ –40°C to 150°C

LT3840MP......................................... –55°C to 150°C

Lead Temperature (Soldering, 10 sec)

TSSOP Only ..........................................................300°C

Storage Temperature............................. –65°C to 150°C

LT8705 Datasheet(PDF) 2 Page - Linear Technology

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