LT3999

2

3999fa

For more information www.linear.com/LT3999

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

SWA, SWB................................................. –0.3V to 80V

OVLO/DC, SYNC ......................................... –0.3V to 8V

Operating Junction Temperature Range (Note 2)

LT3999E ............................................ –40°C to 125°C

LT3999I ............................................. –40°C to 125°C

LT3999H............................................ –40°C to 150°C

LT3999MP......................................... –55°C to 150°C

(Note 1)

1

2

3

4

5

SWA

RBIAS

UVLO

OVLO/DC

10

9

8

7

6

SWB

ILIM/SS

SYNC

RT

RDC

TOP VIEW

11

GND

MSE PACKAGE

10-LEAD PLASTIC MSOP

EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB

TOP VIEW

11

GND

DD PACKAGE

10-LEAD (3mm

× 3mm) PLASTIC DFN

10

9

6

7

8

4

5

3

2

1

SWB

ILIM/SS

SYNC

RT

RDC

SWA

RBIAS

UVLO

OVLO/DC

EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3999EMSE#PBF

LT3999EMSE#TRPBF

LTGKR

10-Lead Plastic MSOP

–40°C to 125°C

LT3999IMSE#PBF

LT3999IMSE#TRPBF

LTGKR

10-Lead Plastic MSOP

–40°C to 125°C

LT3999HMSE#PBF

LT3999HMSE#TRPBF

LTGKR

10-Lead Plastic MSOP

–40°C to 150°C

LT3999MPMSE#PBF

LT3999MPMSE#TRPBF

LTGKR

10-Lead Plastic MSOP

–55°C to 150°C

LT3999EDD#PBF

LT3999EDD#TRPBF

LGKQ

10-Lead (3mm × 3mm) Plastic DFN

–40°C to 125°C

LT3999IDD#PBF

LT3999IDD#TRPBF

LGKQ

10-Lead (3mm × 3mm) Plastic DFN

–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.

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

Lead Temperature (Soldering, 10 sec)

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