TPS75715, TPS75718, TPS75725, TPS75733 WITH POWER GOOD AND

TPS75701 FAST-TRANSIENT RESPONSE 3-A LOW-DROPOUT

VOLTAGE REGULATORS

SLVS306D – NOVEMBER 2000 – REVISED MAY 2002

7

POST OFFICE BOX 655303

125

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input current (EN)

EN = VI

–1

1

µA

Input current (EN)

EN = 0 V

–1

0

1

µA

High level EN input voltage

2

V

Low level EN input voltage

0.7

V

Dropout voltage (3 3 V output) (see Note 4)

IO = 3 A,

VI = 3.2 V,

TJ = 25°C

150

mV

VO

Dropout voltage, (3.3 V output) (see Note 4)

IO = 3 A,

VI = 3.2 V

300

mV

VO

Discharge transistor current

VO = 1.5 V,

TJ = 25°C

10

25

mA

V

UVLO

TJ = 25°C,

VI rising

2.2

2.75

V

VI

UVLO hysteresis

TJ = 25°C,

VI falling

100

mV

NOTE 4: IN voltage equals VO(typ) – 100 mV; TPS75715, TPS75718, and TPS75725 dropout voltage limited by input voltage range limitations

(i.e., TPS75733 input voltage is set to 3.2 V for the purpose of this test).

TYPICAL CHARACTERISTICS

Table of Graphs

FIGURE

V

Output voltage

vs Output current

2, 3

VO

Output voltage

vs Junction temperature

4, 5

Ground current

vs Junction temperature

6

Power supply ripple rejection

vs Frequency

7

Output spectral noise density

vs Frequency

8

zo

Output impedance

vs Frequency

9

V

Dropout voltage

vs Input voltage

10

VDO

Dropout voltage

vs Junction temperature

11

VI

Minimum required input voltage

vs Output voltage

12

Line transient response

13, 15

Load transient response

14, 16

VO

Output voltage and enable voltage

vs Time (start-up)

17

Equivalent series resistance

vs Output current

19, 20