Description

The SC4205 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 1 Amp. 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 the elimination of costly heatsinks. Additionally, the SC4205 has an enable pin to further reduce power dissipation while shut down. The SC4205 provides excellent regulation over variations in line, load and temperature.

Features

● 350mV dropout @ 1A

● Adjustable output from 1.2V to 4.8V

● 2.5V and 1.8V options (adjustable externally using resistors)

● Over current and over temperature protection

● Enable pin

● 10μA quiescent current in shutdown

● Low reverse leakage (output to input)

● Surface mount and through-hole packages

● Full industrial temperature range

● Available in SOIC-8EDP package

Applications

● Battery powered systems

● Motherboards

● Peripheral cards

● Network cards

● Set Top Boxes

● Medical Equipment

● Notebook Computers

SC4205屬于集成電路（IC） > 線性 + 開(kāi)關(guān)穩(wěn)壓器。Semtech Corporation制造生產(chǎn)的SC4205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(wú)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(duì)于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開(kāi)關(guān)模式的穩(wěn)壓器，但它們通常更適合對(duì)噪聲高度敏感的應(yīng)用。