TPS79015, TPS79018, TPS79025, TPS79028, TPS79030

ULTRALOW-POWER LOW-NOISE 50-mA

LOW-DROPOUT LINEAR REGULATORS

SLVS299B – SEPTEMBER 2000 – REVISED MAY 2001

4

POST OFFICE BOX 655303

recommended operating conditions

MIN

NOM

MAX

UNIT

Input voltage, VI (see Note 2)

2.7

10

V

Continuous output current, IO (see Note 3)

0

50

mA

Operating junction temperature, TJ

–40

125

°C

NOTES:

2. To calculate the minimum input voltage for your maximum output current, use the following formula:

VI(min) = VO(max) + VDO (max load)

3. Continuous output current and operating junction temperature are limited by internal protection circuitry, but it is not recommended

that the device operate under conditions beyond those specified in this table for extended periods of time.

electrical characteristics over recommended operating free–air temperature range,

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TPS79015

TJ = 25°C,

2.7 V < VI < 10 V

1.5

TPS79015

TJ = –40°C to 125°C, 2.7 V < VI < 10 V

1.455

1.545

TPS79018

TJ = 25°C,

2.8 V < VI < 10 V

1.8

TPS79018

TJ = –40°C to 125°C, 2.8 V < VI < 10 V

1.746

1.854

Output voltage (10

µA to 50 mA load)

TPS79025

TJ = 25°C,

3.5 V < VI < 10 V

2.5

V

g(

µ

)

(see Note 4)

TPS79025

TJ = –40°C to 125°C, 3.5 V < VI < 10 V

2.425

2.575

V

TPS79028

TJ = 25°C,

3.8 V < VI < 10 V

2.8

TPS79028

TJ = –40°C to 125°C, 3.8 V < VI < 10 V

2.716

2.884

TPS79030

TJ = 25°C,

4.0 V < VI < 10 V

3

TPS79030

TJ = –40°C to 125°C, 4.0 V < VI < 10 V

2.910

3.090

Quiescent current (GND current) (see Note 4)

EN = 0 V,

10

µA < IO < 50 mA,

TJ = 25°C

17

µA

Quiescent current (GND current) (see Note 4)

EN = 0 V,

IO = 50 mA,

TJ = –40°C to 125°C

28

µA

Load regulation

EN = 0 V,

IO = 10 µA to 50 mA,

TJ = 25°C

8

mV

Output voltage line regulation (

VO + 1 V < VI ≤ 10 V, TJ = 25°C

0.04

Output voltage line regulation (

(see Notes 4 and 5)

VO + 1 V < VI ≤ 10 V,

TJ = –40°C to 125°C

0.1

%/V

Output noise voltage (TPS79030)

BW = 300 Hz to 50 kHz, C(byp) = 0.01 µF,

Co = 10 µF,

IO = 50 mA, TJ = 25°C

56

µVrms

Output current limit

VO = 0 V,

See Note 4

350

750

mA

Standby current

EN = VI ,

2.7 < VI < 10 V

1

µA

Standby current

TJ = –40°C to 125°C

2

µA

NOTES:

4. The minimum IN operating voltage is 2.7 V or VO (typ) + 1 V, whichever is greater. The maximum IN voltage is 10 V. The minimum

output current is 10

µA and the maximum output current is 50 mA.

5. If VO ≤ 1.8 V then VImin = 2.7 V, VImax = 10 V:

Line Reg. (mV)

+ % V

V

O

V

2.7 V

100

1000

If VO ≥ 2.5 V then VImin = VO + 1 V, VImax = 10 V:

Line Reg. (mV)

+ % V

V

O

V

Imax *

V

O )

1V

100

1000