2

LT3437

3437fc

The

°C to 125°C

otherwise noted.

LT3437EFE

LT3437IFE

LT3437HFE

ORDER PART NUMBER

LT3437EDD

LT3437IDD

Consult LTC Marketing for parts specified with wider operating temperature ranges.

DD PART MARKING

ORDER PART NUMBER

FE PART MARKING

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

BOOST Pin Above SW ............................................ 35V

BOOST Pin Voltage Operating ................................. 75V

BOOST Pin 100ms Transient, <15% Duty Cycle ...... 85V

EXPOSED PAD IS GND (PIN 11)

MUST BE SOLDERED TO GND (PIN 4)

Operating Junction Temperature Range

LT3437EDD (Note 2) ....................... – 40

°C to 125°C

LT3437IDD (Note 2) ........................ – 40

°C to 125°C

LT3437EFE (Note 2) ........................ – 40

°C to 125°C

LT3437IFE (Note 2) ......................... – 40

°C to 125°C

LT3437HFE (Note 2) .......................... –40

°C to 140°C

Storage Temperature Range ................. – 65

°C to 125°C

DD Package ....................................... –65

°C to 125°C

FE Package ........................................ –65

°C to 150°C

FE PACKAGE

16-LEAD PLASTIC TSSOP

1

2

3

4

5

6

7

8

TOP VIEW

16

15

14

13

12

11

10

9

NC

SW

NC

NC

BOOST

NC

GND

NC

SHDN

SYNC

NC

FB

BIAS

17

EXPOSED PAD IS GND (PIN 17)

MUST BE SOLDERED TO GND (PIN 8)

3437EFE

3437IFE

3437HFE

LBDJ

LBDK

(Note 1)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SHDN Threshold

●

1.15

1.3

1.45

V

SHDN Input Current

SHDN = 12V

●

530

µA

Minimum Input Voltage (Note 3)

●

2.5

3

V

Supply Shutdown Current

SHDN = 0V, BOOST = 0V, FB/PGFB = 0V, BIAS = 0V

0.1

2

µA

Supply Sleep Current (Note 4)

BIAS = 0V, FB = 1.35V

●

150

300

µA

FB = 1.35V

●

45

75

µA

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

TOP VIEW

DD PACKAGE

10-LEAD (3mm

× 3mm) PLASTIC DFN

10

9

6

7

8

4

5

3

2

1

SHDN

SYNC

FB

BIAS

SW

BOOST

GND

11