TPS74801RGWTG4 datasheet(9/28 Pages) TI1

Part #	TPS74801RGWTG4

Description	1.5A Low-Dropout Linear Regulator with Programmable Soft-Start

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Manufacturer	TI1 [Texas Instruments]

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2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

I

(A)

OUT

1.6

+125 C

°

+25 C

°

-

°

40 C

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

2.0

2.5

3.0

3.5

4.0

4.5

5.0

V

(V)

BIAS

5.5

+125 C

°

+25 C

°

-

°

40 C

500

475

450

425

400

375

350

325

300

-

50

-

25

0

25

50

75

100

JunctionTemperature( C)

°

125

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

2

4

6

8

10

12

PGCurrent(mA)

4.0

3.8

3.6

3.4

3.2

3.0

2.8

2.6

2.4

2.2

2.0

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

V

-

BIAS

OUT

(V)

5.0

+125 C

°

+25 C

°

-

°

40 C

V

=0.8V

OUT

TPS74801

www.ti.com

SBVS074J

– JANUARY 2007 – REVISED JANUARY 2012

TYPICAL CHARACTERISTICS (continued)

At TJ = +25°C, VIN = VOUT(TYP) + 0.3V, VBIAS = 5V, IOUT = 50mA, VEN = VIN, CIN = 1μF, CBIAS = 4.7μF, and COUT = 10μF,

unless otherwise noted.

BIAS PIN CURRENT vs

IOUT AND TEMPERATURE (TJ)

VBIAS AND TEMPERATURE (TJ)

Figure 15.

Figure 16.

SOFT-START CHARGING CURRENT (ISS) vs

TEMPERATURE (TJ)

LOW-LEVEL PG VOLTAGE vs CURRENT

Figure 17.

Figure 18.

CURRENT LIMIT vs (VBIAS – VOUT)

Figure 19.

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