TPS76201DBVT datasheet(5/11 Pages) TI

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TPS76201

LOW OUTPUT ADJUSTABLE

ULTRALOW-POWER 100-mA LDO LINEAR REGULATOR

SLVS323A – FEBRUARY 2001 – REVISED MAY 2001

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 1

2.480

2.485

2.490

2.495

2.500

2.505

2.510

2.515

2.520

100

VI = 3.5 V

VO = 2.5 V

Co = 4.7 µF

TJ = 25° C

OUTPUT VOLTAGE

OUTPUT CURRENT

IO – Output Current – mA

Figure 2

0.685

0.690

0.695

0.700

0.705

0.710

0.715

0.720

100

VI = 2.7 V

VO = 0.7 V

Co = 4.7 µF

TJ = 25° C

IO – Output Current – mA

OUTPUT VOLTAGE

OUTPUT CURRENT

Figure 3

0.6645

0.6650

0.6655

0.6660

0.6665

0.6670

0.6675

0.6680

–40 –25 –10 5

20 35 50 65 80 95 110 125

VI = 2.7 V

VO = Vref

Co = 4.7 µF

IO = 1 mA

IO = 100 mA

TJ – Junction Temperature – °C

OUTPUT VOLTAGE

JUNCTION TEMPERATURE

Figure 4

TJ – Junction Temperature – °C

GROUND CURRENT

JUNCTION TEMPERATURE

–40 –25 –10 5

20 35 50 65 80 95 110 125

IO = 100 mA

IO = 10 µA

VI = 2.7 V

VO = 0.7 V

Figure 5

100

150

200

250

300

350

400

450

500

100

1 k

10 k

100 k

f – Frequency – Hz

OUTPUT SPECTRAL NOISE DENSITY

FREQUENCY

VI = 2.7 V

VO = 0.7 V,

IO = 1 mA,

Co = 4.7 µF

Figure 6

–0.5

–1.5

100

10 k

1.5

2.5

3.5

100 k

1 M

f – Frequency – Hz

OUTPUT IMPEDANCE

FREQUENCY

VI = 2.7 V

VO = 0.7 V

Co = 4.7 µF

RESR ≈ 0.3

IO = 100 mA

IO = 1 mA

–1

0.5

Figure 7

100

120

140

160

180

DROPOUT VOLTAGE

INPUT VOLTAGE

VI – Input Voltage – V

TJ = 25°C

TJ = –40°C

IO = 100 mA

TJ = 125°C

Figure 8

100

1000

–40 –25 –10 5

20 35 50 65 80 95 110 125

IO = 100 mA

IO = 10 mA

TJ – Junction Temperature – °C

DROPOUT VOLTAGE

JUNCTION TEMPERATURE

VI = 3.2 V

CO = 4.7 µF

Figure 9

–10

100

1 k

10 k

100 k

1 M

10 M

IO = 100 mA

IO = 1 mA

f – Frequency – Hz

POWER SUPPLY RIPPLE REJECTION

FREQUENCY

VI = 2.7 V

VO = 0.7 V

Co = 4.7 µF

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