TPS797285DCKR datasheet(3/17 Pages) TI1

No de pièce	TPS797285DCKR

Description	Ultra-Low IQ, 50mA LDO Linear Regulators with Power Good Output in SC70 Package

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TPS797xx

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SLVS332H – MARCH 2001 – REVISED APRIL 2012

ELECTRICAL CHARACTERISTICS

Over operating temperature range TJ = –40°C to +85°C, VIN = VOUT (typ) +0.5V or 2.0V, whichever is greater; IOUT = 0.5mA,

VSET, VEN = VIN, and COUT = 1.0μF, unless otherwise noted. Typical values are at TA = +25°C.

TPS797xx

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IOUT = 3mA

1.8

5.5

VIN

Input voltage(1)

V

IOUT = 10mA

2

5.5

IOUT

Continuous output current(2)

0

50

mA

VOUT + 1V ≤ VIN ≤ 5.5V

VOUT

Output voltage accuracy(3)

–4

4

%

1mA < IOUT < 10mA

ΔVOUT% /

Line regulation(3)

VOUT + 1V ≤ VIN ≤ 5.5V

0.15

%/V

ΔVIN

ΔVOUT% /

Load regulation

1

μA < IOUT < 10mA

5

mV

ΔIOUT

TPS79730

110

200

Dropout voltage(4), IOUT = 10mA

VDO

mV

VIN = VOUT (NOM) – 0.1V

TPS79733

105

200

ISC

Output current limit

VOUT = 0V

190

300

mA

IGND

Ground pin current(3)

IOUT = 10mA

1.2

2

μA

Power-supply rejection ratio

f = 100Hz, COUT = 10μF,

PSRR

50

dB

(ripple rejection)

IOUT = 10mA

BW = 200kHz to 100kHz,

VN

Output noise voltage (TPS79718)

600

μVRMS

COUT = 10μF, IOUT = 10mA

VPG(MIN)

Minimum input voltage for valid PG

V(PG) ≥ 0.8V, IPG = 100μA

1.2

V

VIT

PG trip threshold voltage

VOUT increasing

90

%/VOUT

VIN = 1.4V, IPG = 30μA, IOUT =

VPG,LO

PG output low voltage

0.14

0.225

V

1mA

V(PG) = 5V, VIN = VOUT + 1.0V,

IPG,LKG

PG leakage current

0.1

nA

IOUT = 1mA

TJ

Operating junction temperature, TJ

–40

+85

°C

(1)

Minimum VIN = VOUT + VDO or the minimum value specified here, whichever is greater.

(2)

Continuous output current is limited by internal protection circuitry, but it is not recommended that the device operate above this

maximum for extended periods of time.

(3)

Minimum VIN is specified in note (1).

(4)

VDO is not measured for the TPS79718 because minimum VIN > 1.7V.

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