TPS76715Q, TPS76718Q, TPS76725Q, TPS76727Q

TPS76728Q, TPS76730Q TPS76733Q, TPS76750Q, TPS76701Q

FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS

SLVS208C – MAY 1999 – REVISED SEPTEMBER 1999

8

POST OFFICE BOX 655303

electrical

characteristics

over

recommended

operating

free-air

temperature

range,

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input current (EN)

EN = 0 V

–1

0

1

µA

Input current (EN)

EN = VI

–1

1

µA

TPS76728

IO = 1 A,

TJ = 25°C

500

TPS76728

IO = 1 A,

TJ = –40°C to 125°C

825

TPS76730

IO = 1 A,

TJ = 25°C

450

Dropout voltage

(See Note 4)

TPS76730

IO = 1 A,

TJ = –40°C to 125°C

675

mV

(See Note 4)

TPS76733

IO = 1 A,

TJ = 25°C

350

mV

TPS76733

IO = 1 A,

TJ = –40°C to 125°C

575

TPS76750

IO = 1 A,

TJ = 25°C

230

TPS76750

IO = 1 A,

TJ = –40°C to 125°C

380

NOTES:

3. If VO ≤ 1.8 V then Vimax = 10 V, Vimin = 2.7 V:

Line Reg. (mV)

+ % V

V

O

V

imax *

2.7 V

100

1000

If VO ≥ 2.5 V then Vimax = 10 V, Vimin = VO + 1 V:

Line Reg. (mV)

+ % V

V

O

V

imax *

V

O )

1V

100

1000

4. IN voltage equals VO(Typ) – 100 mV; TPS76701 output voltage set to 3.3 V nominal with external resistor divider. TPS76715,

TPS76718, TPS76725, and TPS76727 dropout voltage limited by input voltage range limitations (i.e., TPS76730 input voltage needs

to drop to 2.9 V for purpose of this test).

Table of Graphs

FIGURE

VO

Output voltage

vs Output current

2, 3, 4

VO

Output voltage

vs Free-air temperature

5, 6, 7

Ground current

vs Free-air temperature

8, 9

Power supply ripple rejection

vs Frequency

10

Output noise

vs Frequency

11

Zo

Output impedance

vs Frequency

12

VDO

Dropout voltage

vs Free-air temperature

13

Line transient response

14, 16

Load transient response

15, 17

Output voltage

vs Time

18

Dropout voltage

vs Input voltage

19

Equivalent series resistance (ESR)

vs Output current

21 – 24