These voltage regulators are monolithic integrated circuits designed

as fixed?voltage regulators for a wide variety of applications

including local, on?card regulation. These regulators employ internal

current limiting, thermal shutdown, and safe?area compensation. With

adequate heatsinking they can deliver output currents in excess of

1.0 A. Although designed primarily as a fixed voltage regulator, these

devices can be used with external components to obtain adjustable

voltages and currents.

Features

? Output Current in Excess of 1.0 A

? No External Components Required

? Internal Thermal Overload Protection

? Internal Short Circuit Current Limiting

? Output Transistor Safe?Area Compensation

? Output Voltage Offered in 1.5, 2 and 4 Tolerance

? Available in Surface Mount D2PAK?3, DPAK?3 and Standard

3?Lead Transistor Packages

? NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC?Q100

Qualified and PPAP Capable

? These are Pb?Free Devices

MC7812AB屬于集成電路（IC） > 線性 + 開關(guān)穩(wěn)壓器。安森美半導(dǎo)體公司制造生產(chǎn)的MC7812AB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(fù)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(zhuǎn)換為熱量。對于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應(yīng)用。