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DESCRIPTION

The LK112 is a low dropout linear regulator with a built in electronic switch. The internal switch can

be controlled by TTL or CMOS logic levels. The device is ON state when the control pin is pulled to a logic high level. An external capacitor can be used connected to the noise bypass pin to lower

the output noise level to 30?Vrms. An internal PNP pass transistor is used to achieve a low dropout

voltage.

■ OUTPUT CURRENT UP TO 150mA

■ LOW DROPOUT VOLTAGE (350mV AT IOUT=150mA)

■ VERY LOW QUIESCENT CURRENT: 0.1?A

IN OFF MODE AND MAX 250?A IN ON

MODE AT IOUT=0mA

■ LOW OUTPUT NOISE: TYP 30?V AT IOUT=60mA AND 10Hz ■ WIDE RANGE OF OUTPUT VOLTGAES

■ INTERNAL CURRENT AND THERMAL LIMIT