TL5209-25 datasheet(6/22 Pages) TI

部件名	TL5209-25

功能描述	500-mA LOW-NOISE LOW-DROPOUT VOLTAGE REGULATOR WITH SHUTDOWN

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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Electrical Characteristics

TL5209

500-mA LOW-NOISE LOW-DROPOUT VOLTAGE REGULATOR

WITH SHUTDOWN

SLVS581 – SEPTEMBER 2006

V

IN = VOUT + 1 V, COUT = 4.7 µF, IOUT = 1 mA, full range TJ = –40°C to 125°C

PARAMETER

TEST CONDITIONS

TJ

MIN

TYP

MAX

UNIT

25

°C

–1

1

Output voltage accuracy

VOUT = 2.5 V for ADJ only

%

Full range

–2

2

αV

OUT

Output voltage temperature coefficient

Full range

40

ppm/

°C

25

°C

0.009

0.05

Line regulation

VIN = (VOUT + 1 V) to 16 V

%/V

Full range

0.1

25

°C

0.05

0.5

Load regulation

IOUT = 1 mA to 500 mA(1)

%

Full range

0.7

25

°C

45

60

IOUT = 1 mA

Full range

80

25

°C

115

175

IOUT = 50 mA

Full range

250

VIN – VOUT Dropout voltage(2)

mV

25

°C

150

250

IOUT = 100 mA

Full range

300

25

°C

350

500

IOUT = 500 mA

Full range

600

25

°C

100

140

VEN ≥ 3 V, IOUT = 1 mA

Full range

170

µA

25

°C

350

650

VEN ≥ 3 V, IOUT = 50 mA

Full range

900

IQ

Quiescent current

25

°C

1.2

2

VEN ≥ 3 V, IOUT = 100 mA

Full range

3

mA

25

°C

8

20

VEN ≥ 3 V, IOUT = 500 mA

Full range

25

Imin

Minimum load current(3)

Full range

1

mA

VEN ≤ 0.4 V

25

°C

0.05

3

ISD

Shutdown current

25

°C

0.1

µA

VEN ≤ 0.18 V

Full range

8

Ripple rejection

f = 120 Hz

25

°C

75

dB

25

°C

700

900

ILIMIT

Current limit

VOUT = 0 V

mA

Full range

1000

VIN = 16 V, 500-mA load

∆V

OUT/∆PD

Thermal regulation(4)

25

°C

0.05

%/W

pulse for t = 10 ms

VOUT = 2.5 V, IOUT = 50 mA,

25

°C

500

COUT = 2.2 µF, CBYP = 0

Vn

Output noise

nV/

√Hz

IOUT = 50 mA, COUT = 2.2 µF,

25

°C

300

CBYP = 470 pF(5)

25

°C

0.4

VEN = logic LOW (shutdown)

VEN

Enable logic voltage

Full range

0.18

V

VEN = logic HIGH (enabled)

25

°C

2

(1)

Low duty cycle testing is used to maintain the junction temperature as close to the ambient temperature as possible. Changes in output

voltage due to thermal effects are covered separately by the thermal regulation specification.

(2)

Dropout is defined as the input to output differential at which the output drops 2% below its nominal value measured at 1-V differential.

(3)

For stability across the input voltage and temperature. For ADJ versions, the minimum current can be set by R1 and R2.

(4)

Thermal regulation is defined as the change in output voltage at a specified time after a change in power dissipation is applied,

excluding line and load regulation effects.

(5)

CBYP is optional and connected to the BYP/ADJ pin.

6

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