TPS40042DRCTG4 datasheet(6/36 Pages) TI1

Part #	TPS40042DRCTG4

Description	LOW PIN COUNT, LOW VIN (3.0 V TO 5.5 V) SYNCHRONOUS BUCK DC-TO-DC CONTROLLER WITH EXTERNAL REFERENCE INPUT

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TYPICAL CHARACTERISTICS

−40

60

120

Temperature − C

1.100

1.000

0.900

0.800

0.700

0.500

0.400

−20

0

40

80

100

0.600

VDD = 2.25 V

VDD = 5.5 V

20

60

120

Temperature − C

−20

0

40

80

100

20

VDD = 2.25 V

VDD = 5.5 V

−40

110

105

100

95

90

80

75

85

70

−40

60

120

Temperature − C

2.150

2.100

2.050

2.000

1.950

1.850

1.800

−20

0

40

80

100

1.900

20

2.200

Turn ON

Turn OFF

−40

60

120

Temperature − C

−0.9

−1.0

−1.1

−1.2

−1.3

−1.5

−1.6

−20

0

40

80

100

−1.4

20

−0.8

VDD = 5 V

−40

60

120

Temperature − C

700

650

600

500

−20

0

40

80

100

550

20

VDD = 2.25V

VDD = 3.9V

VDD = 5.5V

VDD = 5 V

-40

60

120

6.6

6.5

6.4

6.3

6.1

6.0

-20

0

40

80

100

6.2

20

T - Temperature - °C

TPS40042

SLUS777 – NOVEMBER 2007

Quiescent Current (Non-Switching)

Shutdown Current

Figure 1.

Figure 2.

UVLO Threshold

EN Threshold

Figure 3.

Figure 4.

Oscillator Frequency

Soft Start Time; VREFIN = 1.5 V

Figure 5.

Figure 6.

6

Product Folder Link(s): TPS40042

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