78LXXM

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

7 of 10

www.unisonic.com.tw

QW-R101-002,H

ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

23.04

24

24.96

V

27V

V

≦

22.80

25.20

V

Output Voltage

27V

V

22.80

25.20

V

(note 2)

40

200

mV

Load Regulation

ΔV

OUT

20

100

mV

27V

V

≦

160

300

mV

Line Regulation

ΔV

OUT

28V

V

≦

150

250

mV

Quiescent Current

2.2

6.0

mA

27V

V

≦

1.5

mA

Quiescent Current Change

ΔI

Q

1mA

V

≦

0.1

mA

Output Noise Voltage

eN

10Hz

f

100kHz

≦≦

200

uV

ΔVo/ΔTI

-2.0

mV/

°C

Ripple Rejection

RR

27V

V

≦

34

45

dB

Dropout Voltage

1.7

V

Note 1: The Maximum steady state usable output current are 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