LR78L18 ELECTRICAL CHARACTERISTICS

(VI=27V,Io=40mA,-55

°C<Tj<125°C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Tj=25

°C

17.

30 18.0 18.70

V

Output Voltage

17.10

18.90

V

17.10

18.90

V

(note 2)

Load Regulation

Vo

Tj=25

30

1

80mV

Tj=25

1

990

mV

Line regulation

Vo

°C

70

3

60mV

°C

60

300mV

Quiescent Current

Iq

°C

4.7

6.

5

mA

Quiescent Current Change

∆Iq

1.5

mA

∆Iq

0.1

mA

Output Noise Voltage

10Hz<=f<=100kHz

150

uV

Ripple Rejection

RR

°C

3

236

dB

Dropout Voltage

Vd

Tj=25

°C

1.7

V

LR78L24 ELECTRICAL CHARACTERISTICS

(VI=33V,Io=40mA,-55

°C <Tj<125°C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Tj=25

°C

23.04

24.0

24.96

V

Output Voltage

22.8

25.2

V

22.8

25.2

V

(note 2)

Load Regulation

Vo

Tj=25

40

200

mV

Tj=25

20

100

mV

Line regulation

Vo

°C

160

3

60mV

°C

150

300mV

Quiescent Current

Iq

°C

4.7

6.

5

mA

Quiescent Current Change

∆Iq

1.5

mA

∆Iq

0.1

mA

Output Noise Voltage

10Hz<=f<=100kHz

200

uV

Ripple Rejection

RR

°C

34

45

dB

Dropout Voltage

Vd

Tj=25

°C

1.7

V

Note 1: The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead length of

the package and copper pattern of PCB. The data above represent pulse test conditions with junction

temperatures specified at the initiation of test.

Note 2: Power dissipation<0.5W

LR78L00 Series3-Terminal 0.15A Positive Voltage Regulators

LRC

LESHAN RADIO COMPANY,LTD.

5/7

Ver 1.2 Sep 2011