TPS71229DRCT datasheet(6/21 Pages) TI1

Part #	TPS71229DRCT

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

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400

375

350

325

300

275

250

225

200

2.7

3.2

3.7

4.2

4.7

5.2

5.7

V

IN (V)

+25

_C

−40_C

+125

_C

400

375

350

325

300

275

250

225

200

0

50

100

150

200

250

I

OUT (mA)

+25

_C

−40_C

+125

_C

500

450

400

350

300

250

200

150

100

50

0

Junction Temperature (

_C)

V

EN1 = VEN2 = 0.4V

V

IN = 3.8 V

−40 −25 −10 5

20

35

50

65

80

95

110 125

400

375

350

325

300

275

250

225

200

Junction Temperature (

_C)

−40 −25 −10 5

20

35

50

65

80

95

110 125

V

EN1 = VEN2 = 1.2V

V

IN = 3.8 V

V

OUT1

V

OUT2

V

IN

3.8 V

3.2 V

10 mV/div

100

µs/div

I

OUT = 250 mA

I

OUT = 1 mA

C

OUT1 = COUT2 = 10µF

800

750

700

650

600

550

500

450

400

Junction Temperature (

_C)

−40 −25 −10 5

20

35

50

65

80

95

110 125

V

IN = 3.8 V

TPS71202, TPS71219

TPS71229, TPS71247

TPS71256, TPS71257

SBVS049D – MAY 2004 – REVISED AUGUST 2010

www.ti.com

TYPICAL CHARACTERISTICS (continued)

For all voltage versions at TJ = 25°C, VIN = VOUT(nom) + 1 V, IOUT = 1 mA,VEN = 1.2 V, COUT = 2.2 mF, and CNR = 0.01 mF,

unless otherwise noted.

GROUND PIN CURRENT vs INPUT VOLTAGE

GROUND PIN CURRENT vs IOUT

Figure 7.

Figure 8.

GROUND PIN CURRENT vs JUNCTION TEMPERATURE

(DISABLED)

Figure 9.

Figure 10.

TPS71256

CURRENT LIMIT vs JUNCTION TEMPERATURE

LINE TRANSIENT RESPONSE

Figure 11.

Figure 12.

6

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Product Folder Link(s): TPS71202 TPS71219 TPS71229 TPS71247 TPS71256 TPS71257

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