SC1565IT-2.5集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

SC1565IT-2.5屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由Semtech Corporation制造生產(chǎn)的SC1565IT-2.5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。

Description

The SC1565 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 1.5 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 the elimination of costly heatsinks. Additionally, the 5-lead TO-220/TO-263 and SO-8 versions have an enable pin to further reduce power dissipation while shut down. The SC1565 provides excellent regulation over variations in line, load and temperature.

The SC1565 is available in SO-8, 3-lead SOT-223, 3 and 5 lead TO-220 and 3 and 5 lead TO-263 packages. Three lead packages are available with 1.8V and 2.5V fixed output options only. The SO-8, TO-220-5 and TO-263-5 are available with 1.8V and 2.5V internally preset outputs that are also adjustable using external resistors.

Features

? 350mV dropout @ 1.5A

? Adjustable output from 1.2V to 4.8V(1)

? 2.5V and 1.8V options (adjustable externally using resistors)(1)

? Over current and over temperature protection

? Enable pin(1)

? 10μA quiescent current in shutdown(1)

? Low reverse leakage (output to input)

? Surface mount and through-hole packages

? Full industrial temperature range

? TO-220, TO-263, SOT-223 and SO-8 Packages

Note:

(1) SO-8, TO-220-5 and TO-263-5 packages only.

Applications

? Battery powered systems

? Motherboards

? Peripheral cards

? Network cards

? Set Top Boxes

? Medical Equipment

? Notebook Computers