LR3966

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 5

www.unisonic.com.tw

QW-R101-032.d

PARAMETER

SYMBOL

RATINGS

UNIT

Input Supply Voltage(Survival)

0~7.0

V

Enable Input Voltage(Survival)

0~7.0

V

Power Dissipation

925

mW

Operation Junction Temperature

-40 ~ +125

°С

Storage Temperature

-65 ~ +150

°С

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

temperature range.

PARAMETER

SYMBOL

TEST CONDITION

MIN

TYP

MAX

UNITS

Output Voltage Tolerance

-2

2

%

-3

3

Adjustable Pin Voltage

(ADJ version)

1.117

1.145

1.174

V

1.110

1.188

Line Regulation (Note 1)

REGLINE

0.08

0.18

%/V

0.22

Load Regulation (Note 1, 2)

REGLOAD

0.25

0.55

%

0.6

Dropout Voltage (Note 3)

50

65

mV

80

480

580

680

Ground Pin Current

60

120

µA

60

120

0.1

5

µA

Output Peak Current

4.5

4.5

A

3.5

Enable Threshold

Output=High

V

Output=Low

0

Enable Input Current

0.05

2

µA

Thermal Shutdown Temperature

165

°С

Thermal Shutdown Hysteresis

10

°С

Notes: 1. Output voltage line regulation is defined as the change in output voltage from the nominal value resulting

from a change in the input line voltage. Output voltage load regulation is defined as the change in output

voltage from the nominal value as the load current increases from no load to full load.

2. Regulation is measured at constant junction temperature by using a 20ms current pulse. Devices are

tested for load regulation in the load range from 10mA to 3.0A

3. Dropout voltage is defined as the voltage from the input to output when output is 2% below the nominal

value. Dropout voltage specification applies only to output voltages of 2.5V and above.