LTC3621/LTC3621-2

2

Rev. D

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ABSOLUTE MAXIMUM RATINGS

VIN Voltage................................................. 17V to –0.3V

RUN Voltage................................................ VIN to –0.3V

MODE/SYNC, FB Voltages............................ 6V to –0.3V

PGOOD Voltages.......................................... 6V to –0.3V

(Note 1)

TOP VIEW

MODE/SYNC

INTVCC

FB

SW

VIN

RUN

DCB PACKAGE

6-LEAD (2mm × 3mm) PLASTIC DFN

TJMAX = 125°C, θJA = 64°C/W, θJC = 9.6°C/W

EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB

4

5

7

GND

6

3

2

1

1

2

3

4

SW

VIN

RUN

PGOOD

8

7

6

5

SGND

MODE/SYNC

INTVCC

FB

TOP VIEW

9

GND

MS8E PACKAGE

8-LEAD PLASTIC MSOP

TJMAX = 150°C, θJA = 40°C/W, θJC = 10°C/W

EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB

PIN CONFIGURATION

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3621EDCB#PBF

LTC3621EDCB#TRPBF

LGDG

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621IDCB#PBF

LTC3621IDCB#TRPBF

LGDG

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621EDCB-3.3#PBF

LTC3621EDCB-3.3#TRPBF

LGQF

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621IDCB-3.3#PBF

LTC3621IDCB-3.3#TRPBF

LGQF

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621EDCB-5#PBF

LTC3621EDCB-5#TRPBF

LGQC

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621IDCB-5#PBF

LTC3621IDCB-5#TRPBF

LGQC

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621EMS8E#PBF

LTC3621EMS8E#TRPBF

LTGDH

8-Lead Plastic MSOP

–40°C to 125°C

LTC3621IMS8E#PBF

LTC3621IMS8E#TRPBF

LTGDH

8-Lead Plastic MSOP

–40°C to 125°C

LTC3621HMS8E#PBF

LTC3621HMS8E#TRPBF

LTGDH

8-Lead Plastic MSOP

–40°C to 150°C

LTC3621EMS8E-3.3#PBF

LTC3621EMS8E-3.3#TRPBF

LTGNY

8-Lead Plastic MSOP

–40°C to 125°C

LTC3621IMS8E-3.3#PBF

LTC3621IMS8E-3.3#TRPBF

LTGNY

8-Lead Plastic MSOP

–40°C to 125°C

LTC3621HMS8E-3.3#PBF

LTC3621HMS8E-3.3#TRPBF

LTGNY

8-Lead Plastic MSOP

–40°C to 150°C

LTC3621EMS8E-5#PBF

LTC3621EMS8E-5#TRPBF

LTGNX

8-Lead Plastic MSOP

–40°C to 125°C

LTC3621IMS8E-5#PBF

LTC3621IMS8E-5#TRPBF

LTGNX

8-Lead Plastic MSOP

–40°C to 125°C

LTC3621HMS8E-5#PBF

LTC3621HMS8E-5#TRPBF

LTGNX

8-Lead Plastic MSOP

–40°C to 150°C

LTC3621EDCB-2#PBF

LTC3621EDCB-2#TRPBF

LGHY

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621IDCB-2#PBF

LTC3621IDCB-2#TRPBF

LGHY

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621EDCB-23.3#PBF

LTC3621EDCB-23.3#TRPBF

LGQG

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621IDCB-23.3#PBF

LTC3621IDCB-23.3#TRPBF

LGQG

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621EDCB-25#PBF

LTC3621EDCB-25#TRPBF

LGQD

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LTC3621IDCB-25#PBF

LTC3621IDCB-25#TRPBF

LGQD

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

Operating Junction Temperature Range (Notes 3, 6, 7)

LTC3621E, LTC3621I.......................... –40°C to 125°C

LTC3621H .......................................... –40°C to 150°C

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