WEJ78L18_15 datasheet(1/1 Pages) WINNERJOIN

Part #	WEJ78L18

Description	Three-terminal negative voltage regulator

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Manufacturer	WINNERJOIN [SHENZHEN YONGERJIA INDUSTRY CO.,LTD]

Direct Link	http://www.wej.cn

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WEJ

ELECTRONIC

CO.,LTD

2

C0

0.1µF

WEJ78L18 Three-terminal positive voltage regulator

FEATURES

Maximum Output current

IOM:

100

mA

Output voltage

VO:

18

V

ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)

Parameter

Symbol

Value

Unlts

Input Voltage

Vi

35

V

Operating Junction Temperature Range

TOPR

-20~+120

℃

Storage Temperature Range

TSTG

-55~+150

℃

ELECTRICAL CHARACTERISTICS (Vis=26V,Io=40mA,0

℃<Tj<125℃,Ci=0.33µF,Co=0.1µF, unless otherwise specified )

Parameter

Symbol

Test conditions

MIN

TYP

MAX

UNIT

Tj=25

℃

17.3

18

18.7

V

17.5V

≤Vi≤30V, Io=1mA~40mA

17.1

18

18.9

V

Output voltage

Vo

Vi=26V, Io=1mA~70mA

17.1

18

18.9

V

(note)

Tj=25

℃, Io=1mA~100mA, Vi=26V

27

180

mV

Load Regulation

∆Vo

Tj=25

℃, Io=1mA~40mA, V i=26V

19

90

mV

20.5V

≤Vi≤33V, Tj=25

℃ ,Io=40mA

70

360

mV

Line regulation

∆Vo

22V

≤Vi≤33V, Tj=25

℃,Io=40mA

64

300

mV

Quiescent Current

Iq

4.7

6.5

mA

∆Iq

22V

≤Vi≤33V, Io=40mA

1.5

mA

Quiescent Current Change

∆Iq

1mA

≤I O≤40mA, Vi=26V

0.1

mA

Output Noise Voltage

VN

10Hz

≤f≤100KHz

89

µV

Ripple Rejection

RR

21.5V

≤Vi≤31.5V,f=120Hz,

25

℃≤Tj≤125℃

32

36

dB

Dropout Voltage

Vd

Tj=25

℃

1.7

V

TYPICAL APPLICATION

Vi

3

1

Vo

U

Ci

0.33µF

Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as

Possible to the regulators.

78L18

SOT-89

1. OUT

2. GND

3. IN

1

3

2

WEJ78L18

Http:// www.wej.cn

E-mail:wej@yongerjia.com

WEJ ELECTRONIC CO.

RoHS

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WEJ78L18 Datasheet(PDF) 1 Page - SHENZHEN YONGERJIA INDUSTRY CO.,LTD

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