MP2172C – 2A, SYNCHRONOUS STEP-DOWN SWITCHER

MP2172C Rev.1.0

www.MonolithicPower.com

6

4/22/2019

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TYPICAL CHARACTERISTICS

VIN = 3.6V, VOUT = 1.2V, L = 1µH, COUT = 22µF, TA = +25°C, unless otherwise noted.

Quiescent Current vs. Input Voltage

Shutdown Current vs. Input Voltage

VEN = 0V

0

0.2

0.4

0.6

0.8

1

2

3456

Input  Voltage(V)

Quiescent

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

23456

Input Voltage (V)

Load Regulation vs. Output Current

Line Regulation vs. Output Current

‐1.00

‐0.75

‐0.50

‐0.25

0.00

0.25

0.50

0.75

1.00

00.5

11.5

22.5

Output  Current  (A)

Vout=1.2V

‐0.50

‐0.40

‐0.30

‐0.20

‐0.10

0.00

0.10

0.20

0.30

0.40

0.50

22.5

33.5

44.5

55.5

6

Input  Voltage (V)

Iout=2A

Iout=0.3A

TRISING vs. Output Current

VIN = 5V

Efficiency vs. Output Current

VIN=5V, L=1μH (DCR=27mΩ)

0

5

10

15

20

25

00.5

1

1.5

22.5

Output  Current  (A)

Vout=3.3V

Vout=1.2V

0

10

20

30

40

50

60

70

80

90

100

00.5

1

1.5

2

Output Current (A)

Vin=5V,Vo=1.2V

Vin=5V,Vo=1.8V

Vin=5V,Vo=2.5V

Vin=5V,Vo=3.3V