LR1120G-40-AF5-A-R datasheet(3/4 Pages) UTC

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LR1120

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 4

www.unisonic.com.tw

QW-R502-331.g

ABSOLUTE MAXIMUM RATING (TA= 25°C, unless otherwise specified.)

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Input Voltage

VIN

EN Input Voltage

VEN

Power Dissipation (TA = 25°C)

0.4

Junction Temperature

150

°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

250

°C/W

OPERATING CONDITIONS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Input Voltage

VIN

2.2 ~ 5.5

Junction Temperature

-40 ~ +125

°C

Ambient Temperature

-40 ~ +85

°C

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

ELECTRICAL CHARACTERISTICS

(VIN = VOUT + 0.5V, VEN = VIN, CIN = COUT = 1μF (Ceramic), TA= 25°C, unless otherwise specified.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Input Voltage

VIN

2.2

5.5

Output Voltage Accuracy

ΔVOUT

IOUT = 10mA

-2

Line Regulation

OUT

VIN = (VOUT+0.5V) ~ 5.5V, IOUT = 1mA

0.01

0.2

%/V

Load Regulation (Note 1)

OUT

1mA<IOUT<400mA, 2.2V≤VIN<2.7V

0.6

1mA<IOUT<500mA, 2.7 V≤VIN≤5.5V

Quiescent Current (Note 2)

VEN = 5V, IOUT = 0mA

μA

Standby Current

ISTN-BY

VEN = 0V

0.7

1.5

μA

Current Limit

ILIMIT

RLOAD = 0Ω, 2.2V≤VIN<2.7V

0.4

0.7

1.05

RLOAD = 0Ω, 2.7V≤VIN≤5.5V

0.5

0.8

1.05

Dropout Voltage (Note 3)

IOUT = 400mA, 2.2V≤VIN ≤2.7V

160

320

IOUT = 500mA, 2.7V≤VIN ≤5.5V

250

400

Soft Start Time

VOUT = 2.5V, CSS = 1nF, COUT = 1μF

0.7

EN Threshold

Logic-Low

VIL

0.6

Logic-High

VIH

1.6

5.5

Enable Pin Current

IEN

0.1

μA

Over Temperature Shutdown

OTS

170

°C

Over Temperature Hysteresis

OTH

°C

Power Supply Rejection Rate

PSRR

IOUT = 10mA, f = 10kHz

Output Noise Voltage

VOUT=1.5V,COUT=1μF,IOUT=0mA, CSS = 1nF

μVRMS

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.

2. Quiescent, or ground current, is the difference between input and output currents. It is defined by IQ = IIN -

IOUT under no load condition (IOUT = 0mA). The total current drawn from the supply is the sum of the load

current plus the ground pin current.

3. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL)×98%.

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