LR1108

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R102-031.B

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage (Operating), (Note 10)

2.5~7.0

V

Input Voltage (Survival)

-0.3~+7.5

V

Shutdown Input Voltage

V

Output Voltage (Survival), (Note 4), (Note 5)

-0.3~+7.5

V

Short Circuit Protected

Maximum Voltage for ERROR Pin

V

Maximum Operating Current (DC)

1

A

Power Dissipation (Note 2)

Internally Limited

Junction Temperature

+125

℃

Operating Temperature

-40~+125

℃

Storage Temperature

-65~+150

℃

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.

ELECTRICAL CHARACTERISTICS

range.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output Voltage Tolerance (Note 6)

-1.5

-3

0

+1.5

+3

%

Output Voltage Line Regulation (Note 6)

V

0.05

%

Output Voltage Load Regulation (Note 6)

V

0.04

%

Dropout Voltage (Note 8)

300

500

mV

200

Ground Pin Current In Normal Operation

Mode

300

uA

Peak Output Current

(Note 2)

600

800

mA

SHORT CIRCUIT PROTECTION

Short Circuit Current

2

A

OVER TEMPERATURE PROTECTION

Shutdown Threshold

165

℃

Thermal Shutdown Hysteresis

10

℃

SHUTDOWN INPUT

Output = High

Shutdown Threshold

Output = Low

0

0.2

V

Turn-off Delay

20

µs

Turn-on Delay

25

µs

SD Input Current

1

nA

ERROR FLAG COMPARATOR

ERROR Flag Saturation

0.02

0.1

V

ERROR Flag Pin Leakage Current

1

nA

Threshold

(Note 7)

5

10

16

%

Threshold Hysteresis

(Note 7)

2

5

8

%

Flag Reset Delay

1

µs

AC PARAMETERS

60

Ripple Rejection

PSRR

40

dB

Output Noise Density

f = 120Hz

0.8

µV

BW = 10Hz – 100kHz

150

Output Noise Voltage

eN

BW = 300Hz – 300kHz

100

µVrms