SC4217集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

SC4217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SC4217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。

Description

The SC4217 is a 3A, high performance LDO designed for use in applications requiring very low input voltage and very low dropout voltage. It operates with an input voltage as low as 1.8V and a programmable output voltage from 1.24V. The SC4217 features ultra- low dropout, ideal for applications where VOUT is very close to VIN. Additionally, the SC4217 has an enable pin to further reduce power dissipation while shut down. The SC4217 provides excellent regulation over line, load and temperature.

Features

■ Input voltage range from 1.8V to 5.5V

■ Typical 300mV dropout @ 3A

■ Adjustable output from 1.24V

■ Over-current and over-temperature protection

■ Enable pin

■ 10μA shutdown current

■ Full industrial temperature range

■ TO263-5 package, fully WEEE and RoHS compliant

Applications

■ Telecom/networking equipment

■ Motherboards/peripheral cards

■ Industrial equipment

■ Wireless infrastructure

■ Set-top boxes

■ Medical equipment