MP2012 – 1.5A SYNCHRONOUS STEP-DOWN CONVERTER

MP2012 Rev. 1.01

www.MonolithicPower.com

4

9/22/2011

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© 2011 MPS. All Rights Reserved.

TYPICAL PERFORMANCE CHARACTERISTICS

Load Regulation

Enable Supply Current vs.

Input Voltage

500

550

600

650

700

750

800

850

2.5

3 3.5

4 4.5

5 5.5

6

Case Temperature Risevs.

Output Current

0

5

10

15

20

25

30

35

0

0.5

1

1.5

OUTPUT CURRENT (A)

DUTY CYCLE

Peak Current vs. Duty

LOAD CURRENT(A)

INPUT VOLTAGE (V)

Line Regulation

-0.4%

-0.3%

-0.2%

-0.1%

0.0%

0.1%

00.5

11.5

-0.60%

-0.40%

-0.20%

0.00%

0.20%

0.40%

2 2.5

3 3.5

4 4.5 5 5.5 6

Io=0A

Io=0.75A

Io=1.5A

Vin=3V

Vin=5V

Efficiency vs.

Load Current

LOAD CURRENT(A)

0

10

20

30

40

50

60

70

80

90

100

0

0.3

0.6

0.9

1.2

1.5

Vin=5V

Vin=3V

1.5

2

2.5

3

3.5

4

4.5

40% 50% 60% 70% 80% 90% 100%