MP4473–HIGH-EFFICIENCY, FAST-TRANSIENT, SYNCHRONOUS, STEP-DOWN CONVERTER

MP4473 Rev. 1.0

www.MonolithicPower.com

5

12/15/2014

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TYPICAL CHARACTERISTICS

Feedback Voltage vs.

Junction Temperature

VIN=24V

0.810

0.812

0.814

0.816

0.818

0.820

-50 -25

0

25 50

75 100 125

Quiescent Current vs.

Junction Temperature

VIN=24V

400

450

500

550

600

-50 -25

0

25

50

75 100 125

Shutdown Current vs.

Junction Temperature

VIN=24V

0

20

40

60

80

100

120

-50 -25

0

25 50

75 100 125

Ton vs.

Junction Temperature

VIN=12V

275

277

279

281

283

285

-50 -25

0

25

50

75 100 125

HS R

Junction Temperature

VIN=24V,BST-SW=5V

20

25

30

35

40

45

50

55

60

-50 -25

0

25

50

75 100 125

Current Limit vs.

Junction Temperature

VIN=24V

6.0

6.5

7.0

7.5

8.0

8.5

9.0

-50 -25

0

25 50

75 100 125

I

VIN=24V

7.0

7.5

8.0

8.5

9.0

9.5

10.0

-50 -25

0

25 50

75 100 125

VIN UVLO Rising Threshold vs.

Junction Temperature

3.95

3.97

3.99

4.01

4.03

4.05

-50 -25

0

25 50

75 100 125

VIN UVLO Falling Threshold vs.

Junction Temperature

VIN=24V

3.10

3.12

3.14

3.16

3.18

3.20

-50 -25

0

25

50 75 100 125