MP8642 — DUAL 3A, 23V, 600kHz STEP-DOWN CONVERTER

MP8642 Rev. 1.0

www.MonolithicPower.com

5

9/13/2012

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© 2012 MPS. All Rights Reserved.

TYPICAL PERFORMANCE CHARACTERISTICS

820

825

830

835

840

845

850

855

860

865

870

0

5

10

15

20

25

0

5

10

15

20

25

0

5

10

15

20

25

0

5

10

15

20

25

0

0.05

0.10

0.15

0.20

0.25

0.30

0.35

4.0

4.5

5.0

5.5

6.0

6.5

7.0

0

20406080

100

-0.07

-0.05

-0.03

-0.01

0.01

0.03

0.05

0.07

00.511.522.5

33.5

DUTY CYCLE (%)

Peak Current vs.

Duty Cycle

INPUT VOLTAGE (V)

OUTPUT CURRENT (A)

Line Regulation

Case Temperature vs.

Output Current

LOAD CURRENT (A)

Load Regulation

INPUT VOLTAGE (V)

Operating Range

Regulation

0.1

1

10

100

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

5.3

5.5

INPUT VOLTAGE (V)

INPUT VOLTAGE (V)

INPUT VOLTAGE (V)

Enable Supply Current

vs. Input Voltage

Disable Supply Current

vs. Input Voltage

-0.10

-0.08

-0.06

-0.04

-0.02

0.00

0.02

0.04

0.06

0.08

0.10

0369 12 15 18 21 24 27

30.0

32.5

35.0

37.5

40.0

42.5

45.0

0.5

1

1.5

2

2.5

3