MP8666 – 6A, 21V, 600kHz STEP-DOWN WITH SYNCHRONIZABLE GATE DRIVER

MP8666 Rev. 1.21

www.MonolithicPower.com

6

9/21/2011

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© 2011 MPS. All Rights Reserved.

Enabled Supply Current

vs. Input Voltage

1100

1050

1000

950

900

0

5

10

15

20

25

INPUT VOLTAGE (V)

55

50

45

40

35

30

12

34

6

5

OUTPUT CURRENT (A)

100

10

1

0.1

0

5

10

15

20

25

INPUT VOLTAGE (V)

LOAD CURRENT (A)

Case Temperature vs.

Output Current

10

8

6

4

2

0

10

70

30

90

50

Duty Cycle (%)

Peak Current

vs. Duty Cycle

Operating Range

Disabled Supply Current

vs. Input Voltage

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

0

5

10

15

20

25

INPUT VOLTAGE (V)

4.9

4.7

4.5

4.3

4.1

3.9

3.7

3.5

45

4.5

5.5

6

6.5

7

INPUT VOLTAGE (V)

Load Regulation

1.002

1.001

1.000

0.999

0.998

0.997

0.996

0.995

57

9

13

19

11

15 17

21

Line Regulation

1MHz

1.4MHz

600KHz

0.995

0.996

0.997

0.998

0.999

1

1.001

1.002

0123456

INPUT VOLTAGE(V)