L11810 datasheet(4/6 Pages) UTC

Part #	L11810

Description	1A CMOS LOW DROPOUT VOLTAGE

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Manufacturer	UTC [Unisonic Technologies]

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L11810

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R502-329.c

ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage

VIN

8

V

Input ,Output Voltage

GND - 0.3 ~ VIN + 0.3

V

Output Current

IOUT

1.2

A

Power Dissipation

PD

900

mW

Junction Temperature

TJ

125

°C

Operating Temperature

TOPR

- 40 ~ +85

°C

Storage Temperature

TSTG

- 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

θJA

120

°C/W

Junction to Case (Note)

θJC

25

°C/W

Note: Measure θJC on backside center of tab

ELECTRICAL CHARACTERISTICS (Ta = 25°C, unless otherwise specified.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Input Voltage

VIN

Note1

7

V

Output Voltage Accuracy

VOUT

IOUT =1mA

-1.5

1.5

%

1.8V≤VOUT≤2.0V

-0.15

0.15

%

2.0V<VOUT<4.0V

-0.1 0.02

0.1

%

Line Regulation

OUT

V

Δ

IOUT =1mA,

VIN=VOUT+1~VOUT+2

VOUT≥4.0V

-0.4

0.2

0.4

%

Load Regulation

OUT

V

Δ

IOUT =1mA~1000mA

0.4

1.2

%

Output Current

IOUT

VOUT≥1.8V

1000

mA

Current Limit

ILIMIT

VOUT≥1.8V

1100

mA

Short Circuit Current

ISC

VOUT<0.8V

400

800

mA

Quiescent Current

IQ

IOUT=0mA

30

50

µA

Ground Pin Current

IGND

IOUT =1mA~1000mA

35

µA

1.8V≤VOUT(NOM≤2.0V

1700

mV

2.0V<VOUT(NOM≤2.8V

1200

mV

Dropout Voltage

VD

IOUT=1A

VOUT=VOUT(NOM) -2.0%

2.8V<VOUT(NOM)

1000

mV

Over Temperature Shutdown

OTS

150

°C

Over Temperature Hysteresis

OTH

30

°C

Temperature Coefficient of

Output Voltage

TCVO

30

ppm/°C

f=100Hz

60

dB

f=1kHz

50

dB

Power Supply Ripple

Rejection

PSRR

IOUT=100mA

CO =2.2µF

f=10kHz

20

dB

Output Voltage Noise

eN

IOUT=10mA, COUT=2.2μF, f=10Hz~100kHz

30

µVrms

Notes:1.VIN(MIN)=VOUT+VD

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.

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