TPS74301KTWT datasheet(6/27 Pages) TI

Part #	TPS74301KTWT

Description	1.5A Ultra-LDO with Programmable Sequencing

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Manufacturer	TI [Texas Instruments]

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TYPICAL CHARACTERISTICS

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

-0.1

0

10

20

30

40

I

(mA)

OUT

50

+125 C

°

+25 C

°

-40 C

°

ReferredtoI

=50mA

OUT

0.050

0.025

0

-0.025

-0.050

-0.075

-0.100

-0.125

-0.150

50

500

1000

I

(mA)

OUT

1500

+125 C

°

+25 C

°

-

°

40 C

ReferredtoI

=50mA

OUT

0.05

0.04

0.03

0.02

0.01

0

-0.01

-0.02

-0.03

-0.04

-0.05

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

V

-

IN

OUT (V)

4.5

T = 40

-

°

J

C

T

J =+25°C

T

J =+125°C

100

75

50

25

0

0.5

1.0

I

(A)

OUT

1.5

+125 C

°

+25 C

°

-

°

40 C

200

180

160

140

120

100

80

60

40

20

0

0.9

1.4

1.9

2.4

2.9

3.4

V

-

BIAS

OUT (V)

3.9

+125 C

°

+25 C

°

-40°C

I

=1.5A

OUT

60

50

40

30

20

10

0

0.9

1.4

1.9

2.4

2.9

3.4

V

-

BIAS

V

OUT (V)

3.9

+125 C

°

+25 C

°

-40°C

I

=500mA

OUT

TPS74301

SBVS065E – DECEMBER 2005 – REVISED MAY 2007

At TJ = +25°C, VOUT = 1.5V, VIN = VOUT(TYP) + 0.3V, VBIAS = 3.3V, IOUT = 50mA, EN = VIN, CIN = 1µF, CBIAS = 4.7µF, and COUT = 10µF,

unless otherwise noted.

LOAD REGULATION

Figure 3.

Figure 4.

VIN DROPOUT VOLTAGE vs

LINE REGULATION

IOUT AND TEMPERATURE (TJ)

Figure 5.

Figure 6.

VIN DROPOUT VOLTAGE vs

VBIAS – VOUT AND TEMPERATURE (TJ)

Figure 7.

Figure 8.

6

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