3509 Просмотр технического описания (PDF) - Linear Technology

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3509

Dual 36V, 700mA Step-Down Regulator

Linear Technology 

LT3509

ABSOLUTE MAXIMUM RATINGS

(Note 1)

VIN Pin (Note 2) ........................................................60V

BD Pin.......................................................................20V

BOOST Pins ..............................................................60V

BOOST Pins above SW .............................................30V

RUN/SS, FB, RT, SYNC pins........................................6V

Operating Junction Temperature Range (Notes 3, 6)

LT3509E ............................................ –40°C to 125°C

LT3509I ............................................. –40°C to 125°C

LT3509H............................................ –40°C to 150°C

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

Lead Temperature (Soldering, 10 sec.)

MSOP Package ................................................. 300°C

PIN CONFIGURATION

TOP VIEW

DA1 1

14 FB1

BOOST1 2

13 RUN/SS1

SW1 3

12 BD

VIN 4

15

11 SYNC

SW2 5

10 RT

BOOST2 6

9 RUN/SS2

DA2 7

8 FB2

DE14 PACKAGE

14-LEAD (4mm × 3mm) PLASTIC DFN

θJA = 43°C/W, θJC = 4.3°C/W

EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB

DA1 1

BOOST1 2

SW1 3

VIN 4

VIN 5

SW2 6

BOOST2 7

DA2 8

TOP VIEW

17

16 FB1

15 RUN/SS1

14 AGND

13 BD

12 SYNC

11 RT

10 RUN/SS2

9 FB2

MSE PACKAGE

16-LEAD PLASTIC MSOP

θJA = 43°C/W, θJC = 4.3°C/W

EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING* PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3509EDE#PBF

LT3509EDE#TRPBF

3509

14-Lead (4mm × 3mm) Plastic DFN

–40°C to 125°C

LT3509IDE#PBF

LT3509IDE#TRPBF

3509

14-Lead (4mm × 3mm) Plastic DFN

–40°C to 125°C

LT3509EMSE#PBF

LT3509EMSE#TRPBF

3509

16-Lead Plastic MSOP with Exposed Pad –40°C to 125°C

LT3509IMSE#PBF

LT3509IMSE#TRPBF

3509

16-Lead Plastic MSOP with Exposed Pad –40°C to 125°C

LT3509HMSE#PBF

LT3509HMSE#TRPBF 3509

16-Lead Plastic MSOP with Exposed Pad –40°C to 150°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 non-standard 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/

3509fc

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