TPS77301/315/316/318/327/328/333/350 WITH RESET OUTPUT

TPS77401/415/418/427/428/433/450 WITH POWER GOOD OUTPUT

250-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING

SLVS281E – FEBRUARY 2000 – REVISED JULY 2001

8

POST OFFICE BOX 655303

125

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Minimum input voltage for valid PG

I(PG) = 300 µA,

V(PG) ≤ 0.8 V

1.1

V

PG

Trip threshold voltage

VO decreasing

79

85

%VO

PG

(TPS774xx)

Hysteresis voltage

Measured at VO

0.5

%VO

(TPS774xx)

Output low voltage

VI = 2.7 V,

I(PG) = 1 mA

0.15

0.4

V

Leakage current

V(PG) = 5 V

1

µA

Minimum input voltage for valid RESET

I(RESET) = 300 µA

1.1

V

Trip threshold voltage

VO decreasing

92

98

%VO

Reset

Hysteresis voltage

Measured at VO

0.5

%VO

Reset

(TPS773xx)

Output low voltage

VI = 2.7 V,

I(RESET) = 1 mA

0.15

0.4

V

Leakage current

V(RESET) = 5 V

1

µA

RESET time-out delay

220

ms

2 8 V Output

IO = 250 mA,

TJ = 25°C

270

V

Dropout voltage (see Note 5)

2.8-V Output

IO = 250 mA

475

VDO

Dropout voltage (see Note 5)

3 3 V Output

IO = 250 mA,

TJ = 25°C

200

mV

3.3-V Output

IO = 250 mA

330

mV

V

Dropout voltage (see Note 5)

5 0 V Output

IO = 250 mA,

TJ = 25°C

125

VDO

Dropout voltage (see Note 5)

5.0-V Output

IO = 250 mA

190

NOTE 5: IN voltage equals VO(typ) – 100 mV; 1.5 V, 1.6 V, 1.8-V, and 2.7-V dropout voltage limited by input voltage range limitations (i.e., 3.3

V input voltage needs to drop to 3.2 V for 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 rejection ratio

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

Line transient response

12, 14

Load transient response

13, 15

Output voltage and enable pulse

vs Time

16

Equivalent series resistance (ESR)

vs Output current

18 – 21