TPS40222_15 datasheet(6/28 Pages) TI

Part #	TPS40222

Description	1.6-A, 1.25-MHz BUCK CONVERTER IN A 3 mm 쨈 3 mm SON PACKAGE

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Manufacturer	TI [Texas Instruments]

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TYPICAL CHARACTERISTICS

TJ − Junction Temperature − °C

−50

−25

0

25

75

100

125

50

802

801

803

799

798

800

797

5

4

8

9

6

7

802

801

803

799

798

800

797

VIN − Input Voltage − V

0.1

0.3

1.3

0.5

1.1

0.9

0.7

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

VIN = 5 V

VFB − Feedback Voltage − V

VIN − Input Voltage − V

4

5

6

7

8

9

1.20

1.22

1.24

1.26

1.28

1.30

VFB = 0.8 V

TPS40222

SLUS642A – OCTOBER 2005 – REVISED JANUARY 2006

FEEDBACK VOLTAGE

vs

INPUT VOLTAGE (NO LOAD)

JUNCTION TEMPERATURE

Figure 1.

Figure 2.

OSCILLATOR FREQUENCY

vs

FEEDBACK VOLTAGE

INPUT VOLTAGE

Figure 3.

Figure 4.

6

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