MP4541

– 80V, 0.8A, SYNCHRONOUS STEP-DOWN CONVERTER

MP4541 Rev. 1.0

MonolithicPower.com

7

5/28/2021

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TYPICAL PERFORMANCE CHARACTERISTICS (continued)

VIN = 48V, VOUT = 5V, L = 33µH, TA = 25°C, unless otherwise noted.

Efficiency

Load Regulation

Line Regulation

Bode Plot

IOUT = 0.8A

Case Temperature Rise

vs. Output

Current

40

50

60

70

80

90

100

0

0.2

0.4

0.6

0.8

OUTPUT CURRENT (A)

Vin=12V

Vin=48V

Vin=72V

-0.5

-0.3

-0.1

0.1

0.3

0.5

0

0.2

0.4

0.6

0.8

OUTPUT CURRENT (A)

Vin=12V

Vin=48V

Vin=72V

-1.00

-0.50

0.00

0.50

1.00

0

20

40

60

80

100

INPUT VOLTAGE (V)

Io=0A

Io=0.5A

Io=0.8A

-180

-120

-60

0

60

120

180

-60

-40

-20

0

20

40

60

1

10

100

1000

FREQUENCY (kHz)

Gain

Phase

0

5

10

15

20

25

30

35

0

0.2

0.4

0.6

0.8

OUTPUT CURRENT (A)

VIN=12V

VIN=48V

VIN=72V