TPS74701DRCRG4 datasheet(6/30 Pages) TI1

No de pièce	TPS74701DRCRG4

Description	500-mA Low-Dropout Linear Regulator

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Fabricant	TI1 [Texas Instruments]

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TPS74701

SBVS099G – NOVEMBER 2007 – REVISED OCTOBER 2015

www.ti.com

6.5 Electrical Characteristics

At VEN = 1.1 V, VIN = VOUT + 0.3V, CBIAS = 0.1 μF, CIN = COUT = 10 μF, CNR = 1 nF, IOUT = 50 mA, VBIAS = 5 V, and TJ = –40°C

to 125°C, unless otherwise noted. Typical values are at TJ = 25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input voltage range

VOUT + VDO

5.5

V

VBIAS

Bias pin voltage range

2.7

5.5

V

Internal reference

VREF

TJ = 25°C

0.796

0.8

0.804

V

(Adjustable)

Output voltage range

VIN = 5 V, IOUT = 500 mA

VREF

3.6

V

VOUT

2.97 V

≤ VBIAS ≤ 5.5 V,

Accuracy(1)

–2%

±0.5%

2%

50 mA

≤ IOUT ≤ 500 mA

VOUT/VIN

Line regulation

VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5 V

0.03

%/V

VOUT/IOUT

Load regulation

50 mA

≤ IOUT ≤ 500 mA

0.09

%/A

IOUT = 500 mA,

VIN dropout voltage

(2)

50

120

mV

VBIAS – VOUT (NOM) ≥ 1.62 V

(3)

VDO

VBIAS dropout voltage

(2)

IOUT = 500 mA, VIN = VBIAS

1.31

1.39

V

ICL

Current limit

VOUT = 80% × VOUT (NOM)

800

1350

mA

IBIAS

Bias pin current

1

2

mA

Shutdown supply current

ISHDN

VEN ≤ 0.4 V

1

50

μA

(IGND)

IFB

Feedback pin current

–1

0.150

1

μA

1 kHz, IOUT = 500 mA,

60

VIN = 1.8 V, VOUT = 1.5 V

Power-supply rejection

dB

(VIN to VOUT)

300 kHz, IOUT = 500 mA,

30

VIN = 1.8 V, VOUT = 1.5 V

PSRR

1 kHz, IOUT = 500 mA,

50

VIN = 1.8 V, VOUT = 1.5 V

Power-supply rejection

dB

(VBIAS to VOUT)

300 kHz, IOUT = 500 mA,

30

VIN = 1.8 V, VOUT = 1.5 V

100 Hz to 100 kHz,

Noise

Output noise voltage

25 × VOUT

μVRMS

IOUT = 500 mA, CSS = 0.001 μF

tSTR

Minimum start-up time

RLOAD for IOUT = 1 A, CSS = open

200

μs

ISS

Soft-start charging current

VSS = 0.4 V

440

nA

VEN, HI

Enable input high level

1.1

5.5

V

VEN, LO

Enable input low level

0

0.4

V

VEN, HYS

Enable pin hysteresis

50

mV

VEN, DG

Enable pin deglitch time

20

μs

IEN

Enable pin current

VEN = 5 V

0.1

1

μA

VIT

PG trip threshold

VOUT decreasing

85

90

94

%VOUT

VHYS

PG trip hysteresis

3

%VOUT

VPG, LO

PG output low voltage

IPG = 1 mA (sinking), VOUT < VIT

0.3

V

IPG, LKG

PG leakage current

VPG = 5.25 V, VOUT > VIT

0.1

1

μA

Operating junction

TJ

–40

125

°C

temperature

Shutdown, temperature increasing

165

Thermal shutdown

TSD

°C

temperature

Reset, temperature decreasing

140

(1)

Adjustable devices tested at 0.8 V; resistor tolerance is not taken into account.

(2)

Dropout is defined as the voltage from VIN to VOUT when VOUT is 3% less than nominal.

(3)

1.62 V is a test condition of this device and can be adjusted by referring to Figure 6.

6

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