LT3970/LT3970-3.3/LT3970-5

2

3970fa

BOOST Pin Voltage ...................................................55V

BOOST Pin Above SW Pin.........................................30V

PG, BD Voltage .........................................................30V

(Note 1)

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3970EDDB#PBF

LT3970EDDB#TRPBF

LFCZ

10-Lead (3mm × 2mm) Plastic DFN

–40°C to 125°C

LT3970IDDB#PBF

LT3970IDDB#TRPBF

LFCZ

10-Lead (3mm × 2mm) Plastic DFN

–40°C to 125°C

LT3970EMS#PBF

LT3970EMS#TRPBF

LTFDB

10-Lead Plastic MSOP

–40°C to 125°C

LT3970IMS#PBF

LT3970IMS#TRPBF

LTFDB

10-Lead Plastic MSOP

–40°C to 125°C

LT3970EDDB-3.3#PBF

LT3970EDDB-3.3#TRPBF

LFQH

10-Lead (3mm × 2mm) Plastic DFN

–40°C to 125°C

LT3970IDDB-3.3#PBF

LT3970IDDB-3.3#TRPBF

LFQH

10-Lead (3mm × 2mm) Plastic DFN

–40°C to 125°C

LT3970EMS-3.3#PBF

LT3970EMS-3.3#TRPBF

LTFQG

10-Lead Plastic MSOP

–40°C to 125°C

LT3970IMS-3.3#PBF

LT3970IMS-3.3#TRPBF

LTFQG

10-Lead Plastic MSOP

–40°C to 125°C

LT3970HMS-3.3#PBF

LT3970HMS-3.3#TRPBF

LTFQG

10-Lead Plastic MSOP

–40°C to 150°C

LT3970EDDB-5#PBF

LT3970EDDB-5#TRPBF

LFQF

10-Lead (3mm × 2mm) Plastic DFN

–40°C to 125°C

LT3970IDDB-5#PBF

LT3970IDDB-5#TRPBF

LFQF

10-Lead (3mm × 2mm) Plastic DFN

–40°C to 125°C

LT3970EMS-5#PBF

LT3970EMS-5#TRPBF

LTFQD

10-Lead Plastic MSOP

–40°C to 125°C

LT3970IMS-5#PBF

LT3970IMS-5#TRPBF

LTFQD

10-Lead Plastic MSOP

–40°C to 125°C

LT3970HMS-5#PBF

LT3970HMS-5#TRPBF

LTFQD

10-Lead Plastic MSOP

–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.

ABSOLUTE MAXIMUM RATINGS

TOP VIEW

11

GND

DDB PACKAGE

10-LEAD (3mm × 2mm) PLASTIC DFN

EN

GND

GND

RT

PG

BD

BOOST

SW

6

8

7

9

10

5

4

2

3

1

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

1

2

3

4

5

EN

GND

GND

10

9

8

7

6

RT

PG

BD

BOOST

SW

TOP VIEW

MS PACKAGE

10-LEAD PLASTIC MSOP

PIN CONFIGURATION

Operating Junction Temperature Range (Note 2)

LT3970E/LT3970E-X........................... –40°C to 125°C

LT3970I/LT3970I-X ............................ –40°C to 125°C

LT3970H-X......................................... –40°C to 150°C

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

Lead Temperature (Soldering, 10 sec)

MS Only............................................................ 300°C