MC78L12AC屬于集成電路（IC）的線性+開關穩(wěn)壓器。由安森美半導體公司制造生產的MC78L12AC穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

100 mA Positive Voltage

Regulators

The MC78L00A Series of positive voltage regulators are inexpensive, easy?to?use devices suitable for a multitude of applications that require a regulated supply of up to 100 mA. Like their higher powered MC7800 and MC78M00 Series cousins, these regulators feature internal current limiting and thermal shutdown making them remarkably rugged. No external components are required with the MC78L00 devices in many applications.

These devices offer a substantial performance advantage over the traditional zener diode?resistor combination, as output impedance and quiescent current are substantially reduced.

Features

? Wide Range of Available, Fixed Output Voltages

? Low Cost

? Internal Short Circuit Current Limiting

? Internal Thermal Overload Protection

? No External Components Required

? Complementary Negative Regulators Offered (MC79L00A Series)

? Pb?Free Packages are Available

? NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes