MPQ9841 – 36V, 1A, LOW IQ, SYNC STEP-DOWN CONVERTER, AEC-Q100

MPQ9841 Rev.1.02

www.MonolithicPower.com

8

5/10/2019

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© 2019 MPS. All Rights Reserved.

TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 12V, VOUT = 5V, Io=1A, L = 4.7μH, FSW = 450kHz, with EMI filters, TA = +25°C, unless

otherwise noted. (7)

CISPR25 Class 5 Peak Conducted Emissions

150kHz -108MHz

CISPR25 Class 5 Average Conducted Emissions

150kHz - 108MHz

-20

-15

-10

-5

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

0.1

108

Frequency (MHz)

110

CISPR25 CLASS 5 LIMITS

NOISE FLOOR

-20

-15

-10

-5

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

0.1

108

Frequency (MHz)

110

CISPR25 CLASS 5 LIMITS

NOISE FLOOR

CISPR25 Class 5 Peak Radiated Emissions

150kHz-30MHz

CISPR25 Class 5 Average Radiated Emissions

150kHz-30MHz

-10

-5

0

5

10

15

20

25

30

35

40

45

50

55

60

0.1

30

Frequency (MHz)

110

CISPR25 CLASS 5 LIMITS

NOISE FLOOR

-10

-5

0

5

10

15

20

25

30

35

40

45

50

55

60

0.1

30

Frequency (MHz)

110

CISPR25 CLASS 5 LIMITS

NOISE FLOOR

CISPR25 Class 5 Peak Radiated Emissions

Horizontal, 30MHz-200MHz

CISPR25 Class 5 Average Radiated Emissions

Horizontal, 30MHz-200MHz

-5

0

5

10

15

20

25

30

35

40

45

50

55

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

Frequency (MHz)

CISPR25 CLASS 5 LIMITS

NOISE FLOOR

HORIZONTAL  POLARIZATION

-5

0

5

10

15

20

25

30

35

40

45

50

55

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

Frequency (MHz)

CISPR25 CLASS 5 LIMITS

NOISE FLOOR

HORIZONTAL  POLARIZATION