LR3966

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 9

www.unisonic.com.tw

QW-R101-032.b

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 Range

-40 ~ +125

°С

Storage Temperature Range

-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

-2

2

Output Voltage Tolerance

-3

3

%

1.117

1.174

Adjustable Pin Voltage

(ADJ version)

1.110

1.145

1.188

V

0.18

Line Regulation (Note 1)

REGLINE

0.08

0.22

%/V

0.55

Load Regulation (Note 1,2)

REGLOAD

0.25

0.6

%

65

50

80

580

Dropout Voltage (Note 3)

480

680

mV

60

120

60

120

µA

Ground Pin Current

60

120

µA

4.5

Output Peak Current

3.5

4.5

A

Output=High

EnableThreshold

Output=Low

0

V

Enable Input Current

0.05

2

µA

Thermal Shutdown Temperature

165

°С

Thermal Shutdown Hysteresis

10

°С

Note:

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.