MP8725 – 5A, 21V, SYNCHRONOUS STEP-DOWN CONVERTER WITH INTERNAL MOSFETS

MP8725 Rev. 1.0

www.MonolithicPower.com

5

9/21/2011

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© 2011 MPS. All Rights Reserved.

TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 12V, VOUT = 1.2V, L = 1.8µH, TA = +25ºC, unless otherwise noted.

VCC Regulator Line Regulation

OUTPUT CURRENT (A)

OUTPUT CURRENT (A)

Load Regulation

INPUT VOLTAGE (V)

INPUT VOLTAGE (V)

Operating Range

Peak Current vs Duty Cycle

INPUT VOLTAGE (V)

INPUT VOLTAGE (V)

INPUT VOLTAGE (V)

Enable Supply Current

vs Input Voltage

Disable Supply Current

vs Input Voltage

300

400

500

600

700

800

900

1000

0

5

10

15

20

25

-1

-0.5

0

0.5

1

0

5

10

15

20

25

3

3.5

4

4.5

5

5.5

6

0

5

10

15

20

25

5

5.5

6

6.5

7

7.5

8

0 10 20 30 40 50 60 70 80 90 100

0.1

1

10

100

0

5

10

15

20

25

-1

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1

012

3

45

Line Regulation

Case Temperature Rise

vs Output Current

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0

5

10

15

20

25

0

5

10

15

20

25

30

35

40

45

50

01

234

5

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