TPS70451 datasheet(13/32 Pages) TI

13 / 32 page

TPS70445, TPS70448, TPS70451, TPS70458, TPS70402

DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS

WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS

SLVS307B – SEPTEMBER 2000 – REVISED APRIL 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

–50

–60

–80

–90

100

1 k

10 k

–30

–20

f – Frequency – Hz

TPS70451

POWER SUPPLY REJECTION RATIO

FREQUENCY

–10

100 k

1 M

–40

–70

VIN1 = 4.3 V

VOUT1 = 3.3 V

IO = 10 mA

CO = 22 µF

Figure 6

Figure 7

TPS70451

POWER SUPPLY REJECTION RATIO

FREQUENCY

–50

–60

–80

–100

–20

–10

–30

–40

–70

–90

100

1 k

10 k

f – Frequency – Hz

100 k

1 M

VIN1 = 4.3 V

VOUT1 = 3.3 V

IO = 1 A

CO = 22 µF

–50

–60

–80

–100

–20

–10

–30

–40

–70

–90

100

1 k

10 k

f – Frequency – Hz

TPS70451

POWER SUPPLY REJECTION RATIO

FREQUENCY

100 k

1 M

VIN2 = 2.8 V

VOUT2 = 1.8 V

IO = 10 mA

CO = 47 µF

Figure 8

Figure 9

–50

–60

–80

–100

–20

–10

–30

–40

–70

–90

100

1 k

10 k

f – Frequency – Hz

TPS70451

POWER SUPPLY REJECTION RATIO

FREQUENCY

100 k

1 M

VIN2 = 2.8 V

VOUT2 = 1.8 V

IO = 2 A

CO = 47 µF

TPS70451 Datasheet(PDF) 13 Page - Texas Instruments

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