LK112 datasheet(3/12 Pages) STMICROELECTRONICS

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LK112 SERIES

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ELECTRICAL CHARACTERISTICS FOR LK112 (Tj = 25°C, VIN=VOUT+1V (see Note 1), IOUT=0mA,

VSHDN=1.8V, CI = 1 µF, CO = 2.2µF, CBYPASS = 0.1µF unless otherwise specified)

Note 1: for version with output voltage less than 2V VIN=2.4V

Note 2: only for version with output voltage more than 2.1V

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Quiescent Current

ON MODE (except ISHDN)

175

250

µA

OFF MODE VI = 8V

VSHDN = 0V

0.1

µA

Output Voltage

IO = 30mA

(see table)

∆V

Line Regulation

VI = VO+1V to VO+6V,

VO ≤ 5.6V

0.7

VI = VO+1V to VO+6V,

VO > 5.6V

0.8

∆V

Load Regulation

IO = 1 to 60mA

IO = 1 to 150mA

Dropout Voltage

IO = 60 mA (see Note 2)

0.17

0.24

IO = 150 mA (see Note 2)

0.29

0.35

Output Current Limit

150

SVR

Supply Voltage Rejection

VI = VO+1.5V

CBYP = 0.1µF

CO = 10µF

f = 400Hz

IO = 30mA

Output Noise Voltage

B= 10Hz to 80KHz CBYP = 0.1µF

CO = 10µFVI = VO+1.5V,IO = 60mA

µVrms

ISHDN

Shutdown Input Current

VSHDN = 1.8V

Output ON

µA

VSHDN Shutdown Input Logic

Output ON

Output OFF

1.8

0.6

∆V

O/Tj

Output Voltage

Temperature Coefficient

IO = 10mA

0.09

mV/°C

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