MPQ2249DN datasheet(4/14 Pages) MPS

4 / 14 page

MPQ2249 – INDUSTRIAL GRADE, 6V, 3A, 1MHZ, LOW-VOLTAGE SYNCHRONOUS STEP-DOWN CONVERTER

MPQ2249 Rev.1.01

www.MonolithicPower.com

6/11/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 5V, EN = 5V, VO = 1.8V, L1 = 2.2µH, and TA = +25°C, unless otherwise noted.

LOAD CURRENT ( A )

Line Efficiency

VOUT=1.8V

Line Regulation

VOUT=1.8V

Load Efficiency

VOUT=3.3V

Line Efficiency

VOUT=3.3V

Load Regulation

VOUT=1.8V

Load Regulation

VOUT=3.3V

Peak Current vs.

Duty Cycle

Line Regulation

VOUT=3.3V

LOAD CURRENT ( A )

Load Efficiency

VOUT=1.8V

100

0.0

0.5

1.0

1.5

2.0

2.5

3.0

VIN=6V

VIN=5V

VIN=4V

VIN=3V

100

2.5

3.1

3.7

4.3

4.9

5.5

6.1

IOUT=2A

IOUT=1A

1.70

1.74

1.78

1.82

1.86

1.90

2.5

3.1

3.7

4.3

4.9

5.5

6.1

IOUT=2A

IOUT=1A

1.75

1.77

1.79

1.81

1.83

1.85

0.0

0.5

1.0

1.5

2.0

2.5

3.0

VIN=5V

VIN=3V

100

0.0

0.5

1.0

1.5

2.0

2.5

3.0

VIN=6V

VIN=5.5V

VIN=5V

VIN=4.5V

100

4.5

4.8

5.1

5.4

5.7

6.0

IOUT=2A

IOUT=1A

3.20

3.24

3.28

3.32

3.36

3.40

4.5

4.8

5.1

5.4

5.7

6.0

IOUT=2A

IOUT=1A

3.20

3.24

3.28

3.32

3.36

3.40

0.0

0.5

1.0

1.5

2.0

2.5

3.0

VIN=5.5V

VIN=4.5V

4.0

4.3

4.6

4.9

5.2

5.5

30 40

50 60

70 80

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