MP28162 – SINGLE-INDUCTOR, BUCK-BOOST CONVERTER WITH 1.5A MOSFETS

MP28162 Rev. 1.0

MonolithicPower.com

7

3/16/2023

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TYPICAL PERFORMANCE CHARACTERISTICS

Performance waveforms are tested on the evaluation board in the Design Example section on

page 16. VIN = 3.3V, VOUT = 3.3V, L = 1µH, COUT = 3 x 22µF, TA = 25°C, unless otherwise noted.

0

20

40

60

80

100

0.001

0.01

0.1

1

LOAD CURRENT (A)

Efficiency vs. Load Current

V

OUT = 3.3V, VMODE = low

VIN=2.4V

VIN=3.3V

VIN=4.2V

0

20

40

60

80

100

1.5

2.5

3.5

4.5

5.5

INPUT VOLTAGE (V)

Efficiency vs. Input Voltage

V

OUT = 3.3V, VMODE = low

IOUT=0.5A

IOUT=0.25A

IOUT=0.01A

-0.3

-0.2

-0.1

0.0

0.1

0.2

0.3

0

0.2

0.4

0.6

0.8

1

1.2

1.4

LOAD CURRENT (A)

Load Regulation

V

MODE = high

VIN=2.4V

VIN=3.3V

VIN=4.2V

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

1.5

2.5

3.5

4.5

5.5

INPUT VOLTAGE (V)

Line Regulation

V

MODE = high

IOUT=0A

IOUT=0.25A

IOUT=0.5A

0

5

10

15

20

25

30

0

0.5

1

1.5

OUTPUT CURRENT (A)

Case Temperature Rise

V

MODE = low

VIN=2.4V

VIN=3.3V

VIN=4.2V

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

INPUT VOLTAGE (V)

Maximum Output Current

vs. Input Voltage (9)

V

OUT = 3.3V

Note:

9) Tested with the MP28162, which has a 1.3A ILIMIT at VIN = 3.3V.