-40 -20

0

20

40

60

80 100

140

JUNCTION TEMPERATURE (°C)

120

2

6

10

14

18

-40 -20

0

20

40

60

80 100

140

JUNCTION TEMPERATURE (°C)

120

4.5

5

5.5

6

6.5

4.5V

18V

35V

1.214

1.224

1.234

1.244

1.254

1.264

-40 -20

0

20

40

60

80 100

140

JUNCTION TEMPERATURE (°C)

120

18V

35V

12V

4.5V

0

10

20

30

40

2

6

10

14

16

0

10

20

30

40

0

3

6

9

12

15

-40°C

25°C

125°C

0

10

20

30

40

0

100

200

300

400

500

-40°C

25°C

125°C

LM3489

www.ti.com

SNVS443A – MAY 2006 – REVISED JUNE 2008

Typical Performance Characteristics

All curves taken at VIN = 12V with configuration in typical application circuit shown in Application Information section of this

Quiescent Current

Shutdown Current

vs

vs

Input Voltage

Input Voltage

Feedback Voltage

Feedback Voltage Hysteresis

vs

vs

Temperature

Input Voltage

Feedback Voltage Hysteresis

Current Limit ADJ Current

vs

vs

Temperature

Temperature

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