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Copyright © 2007 Active-Semi, Inc.

ACT4075

Rev PrA, 13-Aug-07

TYPICAL PERFORMANCE CHARACTERISTICS

(Circuit of Figure 3, unless otherwise specified.)

Input Voltage (V)

8 10 12 14 16 18 20 22 24 26 28 30

Switching Frequency vs. Input Voltage

360

410

310

460

510

Output Current (A)

Surface Temperature vs. Output Current

20

80

100

120

140

40

60

0

0.5

1

1.5

2

2.5

Input Voltage (V)

4

5

10

15

20

25

30

Shutdown Supply Current vs. Input Voltage

0

2

6

8

10

12

14

16

18

40

70

80

90

100

50

60

Output Current (A)

30

20

10

0

0.01

0.1

1

10

Efficiency vs. Output Current

L = 15µH

40

70

80

90

100

50

60

0.01

0.1

1

10

Output Current (A)

Efficiency vs. Output Current

30

20

10

L = 10µH

0

-40

Temperature (°C)

-20

0

20

40

60

80

100

1.21

1.25

1.27

1.23

1.19

1.17

Feedback Voltage vs. Temperature

0

35

32