Description

The SC1566 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 3 Amps. Since it has superior dropout characteristics compared to regular LDOs, it can be used to supply 2.5V on motherboards or 2.8V on peripheral cards from the 3.3V supply thus allowing heat sink size reduction or elimination. Additionally, the five pin versions of SC1566 have an enable pin, to further reduce power dissipation while shutdown. The SC1566 provides excellent regulation over variations in line, load and temperature.

Features

? 350mV dropout @ 3A

? Adjustable output from 1.2V to 4.8V

? 2.5V and 1.8V options (5 pin parts also adjustable externally using resistors)

? Over current and over temperature protection

? Enable pin

? 10μA quiescent current in shutdown

? Low reverse leakage (output to input)

? Full industrial temperature range

? TO-220 and TO-263 packages

Applications

? Battery powered systems

? Motherboards and notebook computers

? Peripheral cards

? Network cards

? Set top boxes

? Medical equipment

SC1566IM-2.5TR屬于集成電路（IC） > 線性 + 開關(guān)穩(wěn)壓器。Semtech Corporation制造生產(chǎn)的SC1566IM-2.5TR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(gè)最小量，并且在工作時(shí)會(huì)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。