MC78LC40HT1集成电路（IC）的线性+开关稳压器规格书PDF中文资料

MC78LC40HT1属于集成电路（IC）的线性+开关稳压器。由安森美半导体公司制造生产的MC78LC40HT1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。

The MC78LC00 series of fixed output low dropout linear regulators are designed for handheld communication equipment and portable battery powered applications which require low quiescent current. The MC78LC00 series features an ultra−low quiescent current of 1.1 A. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting output voltage.

Features

• Low Quiescent Current of 1.1 μA Typical

• Excellent Line and Load Regulation

• Maximum Operating Voltage of 12 V

• Low Output Voltage Option

• High Accuracy Output Voltage of 2.5

• Industrial Temperature Range of −40°C to 85°C

• Two Surface Mount Packages (SOT−89, 3 Pin, or SOT−23, 5 Pin)

• Pb−Free Packages are Available

Typical Applications

• Battery Powered Instruments

• Hand−Held Instruments

• Camcorders and Cameras