LM25141QRGETQ1 datasheet(11/49 Pages) TI1

部品番号	LM25141QRGETQ1

部品情報	2.2-MHz, 42-V Synchronous Buck Controller With Low IQ

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Temperature ( C)

°

-60

-40

-20

0

20

40

60

80

100

120

140

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

2600

D017

RT 49.9 k

RT 43.2 k

RT 61.9 k

Temperature (qC)

-60

-40

-20

0

20

40

60

80

100

120

140

200

240

280

320

360

400

440

480

520

560

600

D018

RT 49.9 k:

RT 44.2 k:

RT 73.2 k:

Temperature (qC)

-60

-40

-20

0

20

40

60

80

100

120

140

0

10

20

30

40

50

60

70

80

90

D015

Temperature (qC)

-60

-40

-20

0

20

40

60

80

100

120

140

60

65

70

75

80

85

90

95

100

105

110

D016

Temperature (qC)

-60

-40

-20

0

20

40

60

80

100

120

140

2040

2100

2160

2220

2280

2340

2400

D013

Temperature (qC)

-60

-40

-20

0

20

40

60

80

100

120

140

410

415

420

425

430

435

440

445

450

455

460

465

470

D014

11

LM25141-Q1

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SNVSAP9 – MARCH 2017

Product Folder Links: LM25141-Q1

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Typical Characteristics (continued)

At TA = 25ºC, unless otherwise noted

VIN = 12 V

EN = 12 V

OSC = VDDA

Figure 13. 2.2-MHz Oscillator Frequency vs Temperature

VIN = 12 V

EN = 12 V

OSC = AGND

Figure 14. 440-kHz Oscillator Frequency vs Temperature

VIN = 18 V

Figure 15. ton Minimum vs Temperature

VIN = 3.8 V

VOUT 3.3 V

Figure 16. toff Minimum vs Temperature

VIN = 12 V

Figure 17. RT Frequency vs Temperature (2.2 MHz)

VIN = 12 V

Figure 18. RT Frequency vs Temperature (440 kHz)

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