TPS40040DRBR datasheet(6/38 Pages) TI

Part #	TPS40040DRBR

Description	LOW PIN COUNT, LOW VIN (2.5 V TO 5.5 V) SYNCHRONOUS BUCK DC-TO-DC CONTROLLER WITH ENABLE

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Manufacturer	TI [Texas Instruments]

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−40

60

120

Temperature − C

610

608

604

602

600

594

590

−20

0

40

80

100

596

20

592

598

606

VDD = 2.25 V

VDD = 3.9 V

VDD = 5.5 V

−40

60

120

Temperature − C

4.50

4.45

4.40

4.35

4.25

4.20

−20

0

40

80

100

4.30

20

VDD = 5 V

−40

60

120

Temperature − C

6.1

6.0

5.9

5.8

5.6

5.5

−20

0

40

80

100

5.7

20

VDD = 5 V

−40

60

120

Temperature − C

6.0

5.9

5.8

5.7

5.6

5.5

−20

0

40

80

100

20

VDD = 5 V

−40

60

120

Temperature − C

450

400

300

250

200

100

50

−20

0

40

80

100

150

20

350

RC = 2.5 kΩ

RC =nil

RC = 12.5 kΩ

−40

60

120

Temperature − C

80

70

60

50

30

20

−20

0

40

80

100

40

20

VDD = 3.3 V

VDD = 5 V

TPS40040, TPS40041

SLUS700D – MARCH 2006 – REVISED DECEMBER 2007

TYPICAL CHARACTERISTICS (continued)

Soft Start Time

FB Voltage

Figure 7.

Figure 8.

PWM Gain (TPS40040)

PWM Gain (TPS40041)

Figure 9.

Figure 10.

ILIM Threshold

Bootstrap Switch Resistance

Figure 11.

Figure 12.

6

Product Folder Link(s): TPS40040 TPS40041

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TPS40040DRBR Datasheet(PDF) 6 Page - Texas Instruments

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