LR1120

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 4

www.unisonic.com.tw

QW-R502-331.g

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Input Voltage

6

V

EN Input Voltage

6

V

0.4

W

Junction Temperature

150

°C

Storage Temperature

-

65~ +150

°C

Note:Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

250

°C/W

OPERATING CONDITIONS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Input Voltage

2.2 ~ 5.5

V

Junction Temperature

-40 ~ +125

°C

Ambient Temperature

-40 ~ +85

°C

Note: The device is not guaranteed to function outside its operating conditions.

ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Input Voltage

2.2

5.5

V

Output Voltage Accuracy

-2

0

+2

%

Line Regulation

OUT

IN

OUT

V

×

V

Δ

V

Δ

0.01

0.2

%/V

Load Regulation (Note 1)

OUT

OUT

V

V

Δ

0.6

%

1

%

Quiescent Current (Note 2)

25

50

μA

Standby Current

0.7

1.5

μA

Current Limit

0.4

0.7

1.05

A

0.5

0.8

1.05

A

Dropout Voltage (Note 3)

160

320

mV

250

400

Soft Start Time

0.7

1

ms

EN Threshold

Logic-Low

0

0.6

V

Logic-High

1.6

5.5

V

Enable Pin Current

0.1

1

5

μA

Over Temperature Shutdown

OTS

170

°C

Over Temperature Hysteresis

OTH

30

°C

Power Supply Rejection Rate

PSRR

55

dB

Output Noise Voltage

40

Note: 1. Regulation is measured at constant junction temperature by using a 2ms current pulse. Devices are tested

for load regulation in the load range from 1mA to 500mA.

current plus the ground pin current.