TPS79718-EP datasheet(4/15 Pages) TI1

Part #	TPS79718-EP

Description	ULTRA LOW-POWER, 10 mA, LDO LINEAR REGULATORS WITH POWER GOOD OUTPUT

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ELECTRICAL CHARACTERISTICS

TPS79718-EP, TPS79730-EP, TPS79733-EP

SGLS348A – AUGUST 2006 – REVISED OCTOBER 2007

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IO = 3 mA

1.8

5.5

V

VI

Input voltage(1)

IO = 10 mA

2

5.5

V

IO

Continuous output current(2)

0

10

mA

TA

Operating ambient temperature

–55

125

°C

TA = 25°C, 2.8 V < VI < 5.5 V

1.8

TPS79718

V

TJ = –55°C to 125°C,

1.705

1.895

2.8 V < VI < 5.5 V

TA = 25°C, 4 V < VI < 5.5 V

3

Output voltage

TPS79730

V

TJ = –55°C to 125°C,

2.88

3.12

(1mA to 10mA load)(3)

4 V < VI < 5.5 V

TA = 25°C, 4.3 V < VI < 5.5 V

3.3

TPS79733

V

TJ = –55°C to 125°C,

3.168

3.432

4.3 V < VI < 5.5 V

TA = 25°C, 0 mA < IO < 10 mA

1.2

Quiescent current (GND current)(3)

µA

TJ = –55°C to 125°C, IO = 10 mA

5

Load regulation

TA = 25°C, IO = 1 mA to 10 mA

17

mV

VO + 1 V < VI ≤ 5.5 V, TA = 25°C

0.15

Output voltage line regulation

%/V

VO + 1 V < VI ≤ 5.5 V,

0.8

(

ΔVout/ΔVin)(3)

TJ = –55°C to 125°C

Output noise voltage (TPS79718)

BW = 200 Hz to 100 kHz,

600

µV

RMS

CO = 10 mF,

IO = 10 mA, TA = 25°C

Output current limit

VO = 0 V, See Note 4

190

300

mA

Power supply ripple rejection (TPS79718)

f = 100 Hz, CO = 10 mF, IO = 10 mA,

50

dB

TA = 25°C

IO = 10 mA, TA = 25°C

125

TPS79730

IO = 10 mA, TA = –55°C to 125°C

400

Dropout voltage(4)

mV

IO = 10 mA, TA = 25°C

105

TPS79733

IO = 10 mA, TA = –55°C to 125°C

400

Minimum input voltage for valid PG

I(PG) = 100 uA, V(PG) ≥ 0.8 V

1.2

V

PG trip threshold voltage

VO decreasing

90

%VO

PG output low voltage

VI = 1.4 V, I(PG) = 100 uA

0.14

0.4

V

PG leakage current

V(PG) = 5 V

0.1

nA

(1)

To calculate the minimum input voltage for your maximum output current, use the following formula: VI(min) = VO(max) + VDO (max load)

(2)

Continuous output current is 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.

(3)

The minimum IN operating voltage is 1.8 V or VO (typ) + 1 V, whichever is greater. The maximum IN voltage is 5.5 V. There is no

minimum output current requirement and the maximum output current is 10 mA.

(4)

IN voltage equals VO(typ) – 100 mV; The TPS79730 input voltage is set to 2.9 V and the TPS79733 input voltage is set to 3.2 V. The

TPS79718 dropout voltage is limited by input voltage range limitations.

4

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