MP2174C

– 5.5V, 4A, 1.1MHZ, SYNCHRONOUS STEP-DOWN SWITCHER

MP2174C Rev. 1.0

www.MonolithicPower.com

6

8/7/2019

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

© 2019 MPS. All Rights Reserved.

TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 5V, VOUT = 1.2V, L = 1µH, TA = 25°C, unless otherwise noted.

Efficiency vs. Output Current

VIN = 3.3V

Efficiency vs. Output Current

VIN = 5V

0

10

20

30

40

50

60

70

80

90

100

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

OUTPUT CURRENT (A)

Vout=1.2V

Vout=1.8V

0

10

20

30

40

50

60

70

80

90

100

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

OUTPUT CURRENT (A)

Vout=1.2V

Vout=1.8V

Vout=2.5V

Vout=3.3V

Load Regulation vs. Output Current

VIN = 3.6V/5V, IOUT = 0.1A to 4A

Line Regulation vs. Output Current

VIN = 2.7V to 5.5V

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

OUTPUT CURRENT (A)

Vin=3.6V, Vout=1.2V

Vin=5V, Vout=1.2V

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

2

2.5

3

3.5

4

4.5

5

5.5

6

INPUT VOLTAGE (V)

Iout=0A

Iout=2A

Iout=4A

VIN UVLO vs. Temperature

EN Threshold vs. Temperature

1.8

1.9

2

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

-40

-20

0

20

40

60

80

100 120

AMBIENT TEMPERATURE (

⁰C)

UVLO Rising

UVLO Falling

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

-40

-20

0

20

40

60

80

100 120

AMBIENT TEMPERATURE (

⁰C)

EN Rising Threshold

EN Falling Threshold