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 30µVrms. 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: 0.1µA

IN OFF MODE AND MAX 250µA IN ON

MODE AT IOUT=0mA

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

■ INTERNAL CURRENT AND THERMAL LIMIT

LK112M18TR属于集成电路（IC） > 线性 + 开关稳压器。意法半导体（ST）集团制造生产的LK112M18TR稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。