ZLDO285T8 datasheet(2/9 Pages) ZETEX

2 / 9 page

ABSOLUTE MAXIMUM RATING

Input Supply

Voltage Range

-0.3 to 20V

Shutdown Input

Voltage Range

-0.3 to Vin

Low Battery Output

Voltage Range

-0.3 to 20V

Output Current

300mA

Operating Temperature

-40 to 85°C

Storage Temperature

-55 to 150°C

Power Dissipation

(Tamb=25°C)

2W (Note 1)

ZLDO285

ELECTRICAL CHARACTERISTICS

TEST CONDITIONS (Unless otherwise stated) Tamb=25°C,IL=10mA,Cs=10pF,Cout=1

µF

Parameter

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output voltage

Vin=3.85V

2.75

2.85

2.95

Output voltage

temperature coefficient

∆T

Vin=3.85V

(Note 2, Note 4)

100

2 50

ppm/ °C

Line regulation

∆V

Vin=3.85to 20V

Load regulation

∆V

IL=10 to 300mA

Vin=3.85V

Dropout voltage

(Note3)

Vin-Vo

IL=10mA

IL=100mA

IL=300mA

100

200

Quiescent current

Vin=3.85V, IL=0

0.55

Quiescent current

at shutdown

Iqs

Vin=3.85V, IL=0,

Vshdn=Vin

µA

Shutdown control input

current

Iins

Vshdn=Vin=3.85V

µA

Shutdown control

threshold voltage

Vts

Vin=3.85V

low(on)

high(off)

1.5

0.4

Output current in

shutdown mode

(Note4)

ILs

Vin=20V

Vo=Gnd

100

Output noise voltage

(Note4)

Vin=3.85V

f=10Hz

to100kHz,

IL=100mA

140

µV RMS

Low battery detect

voltage

Vin(bld)

Vo+0.2V

Vo+0.4V V

Low battery flag

output voltage

Vbl

Ibl=100µA,

Vin<Vo+150mV

0.16

0.4

Low battery flag

leakage current

Ibl

Vbl=6V,

Vin>Vo+300mV

0.1

µA

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