4

LT3781

3781f

ELECTRICAL CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: Supply current specification does not include external FET gate

charge currents. Actual supply currents will be higher and vary with

operating frequency, operating voltages, and the type of external switch

elements used. See Applications Information.

Note 3: Guaranteed but not tested.

Note 4: The LT3781E is guaranteed to meet performance specifications

from 0

°C to 70°C. Specifications over the –40°C to 85°C operating

ambient temperature range are assured by design, characterization and

correlation with statistical process controls. For guaranteed performance

to specifications over the –40

°C to 85°C operating ambient temperature

range, the LT3781I is available.

TYPICAL PERFOR A CE CHARACTERISTICS

vs Temperature

TEMPERATURE (

°C)

–55

125

80

3781 G01

–40

0

40

20

19

18

17

16

15

SUPPLY VOLTAGE (V)

9

16

18

16

3781 G03

15

10

12

14

18

17

100

µ

18.0

18.2

10m

3781 • G01a

17.8

17.6

300

µ

1m

3m

18.4

TEMPERATURE (

°C)

–55 –40

3781 • G01b

0

40

80

125

18.20

18.15

18.10

18.05

18.00