L1188

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 4

www.unisonic.com.tw

QW-R502-324.d

ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Input, Output Voltage

V

Input Voltage

8

V

Output Current

1

A

Power Dissipation

800

mW

Junction Temperature

125

°C

Ambient Operating Temperature

- 40 ~ +85

°C

Storage Temperature

- 65 ~ +150

°C

Notes: 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

135

°C/W

Junction to Case (Note)

31

°C/W

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Input Voltage

Note1

7

V

Output Voltage Accuracy

-1.5

1.5

%

Line Regulation

OUT

OUT

V

V

Δ

-0.15

0.15

%

-0.1

0.02

0.1

%

-0.4

0.2

0.4

%

Load Regulation

OUT

OUT

V

V

Δ

0.2

1

%

Output Current

800

mA

Current Limit

900

mA

Short Circuit Current

400

800

mA

Quiescent Current

30

50

μA

Ground Pin Current

35

μA

Dropout Voltage

1400

mV

1000

mV

800

mV

Over Temperature Shutdown

OTS

150

°C

Over Temperature Hysteresis

OTH

30

°C

Temperature Coefficient of

Output Voltage

30

ppm/°C

Power Supply Ripple

Rejection

PSRR

f=100Hz

60

dB

f=1kHz

50

dB

f=10kHz

20

dB

Output Voltage Noise

30

2. To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage

must be applied before a current source load is applied.