TPS71229 datasheet(5/15 Pages) TI

Part #	TPS71229

Description	Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator

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Manufacturer	TI [Texas Instruments]

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TYPICAL CHARACTERISTICS

1.0

0.8

0.6

0.4

0.2

0

−0.2

−0.4

−0.6

−0.8

−1.0

3.0

3.5

4.0

4.5

5.0

5.5

6.0

V

IN (V)

+25

_C

+125

_C

−40_C

1.0

0.8

0.6

0.4

0.2

0

−0.2

−0.4

−0.6

−0.8

−1.0

0

50

100

150

200

250

I

OUT (mA)

+25

_C

−40_C

+125

_C

1.0

0.5

0

−0.5

−1.0

−1.5

Junction Temperature (

_C)

−40 −25 −10 5

20

35

50

65

80

95

110 125

I

OUT = 10 mA

I

OUT = 250 mA

I

OUT = 125 mA

200

180

160

140

120

100

80

60

40

20

0

2.7

3.1

3.3

3.5

3.9

4.1

4.3

4.5 4.7

4.9

V

IN (V)

T

J = −40_ C

T

J = +25_ C

T

J = +125_ C

3.7

2.9

200

150

100

50

0

50

100

150

200

250

I

OUT (mA)

T

J = +25_ C

T

J = −40_ C

T

J = +125_ C

250

200

150

100

50

0

−40 −25 −10 5

20

35

50

65

80

95

110 125

I

OUT = 250 mA

Junction Temperature (

°C)

TPS71202, TPS71219

TPS71229, TPS71247

TPS71256, TPS71257

SBVS049B – MAY 2004 – REVISED MARCH 2005

For all voltage versions at T

J = 25°C, VIN = VOUT(nom) + 1 V, IOUT = 1 mA,VEN = 1.2 V, COUT = 2.2 µF, and CNR = 0.01 µF,

unless otherwise noted.

OUTPUT VOLTAGE vs INPUT VOLTAGE

OUTPUT VOLTAGE vs OUTPUT CURRENT

Figure 1.

Figure 2.

DROPOUT VOLTAGE vs INPUT VOLTAGE

OUTPUT VOLTAGE vs TEMPERATURE

(ADJUSTABLE VERSION)

Figure 3.

Figure 4.

TPS71256

DROPOUT VOLTAGE vs OUTPUT CURRENT

DROPOUT VOLTAGE vs JUNCTION TEMPERATURE

Figure 5.

Figure 6.

5

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