Description

The SC4216 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at up to 3 amperes. It operates with a Vin as low as 1.45V, with output voltage programmable as low as 0.5V. The SC4216 features ultra low dropout, ideal for applications where Vout is very close to Vin. Additionally, the SC4216 has an enable pin to further reduce power dissipation while shut- down. The SC4216 provides excellent regulation over variations in line, load and temperature.

The SC4216 is available in the SOIC-8-EDP (Exposed Die Pad) package. The output voltage can be set via an external divider or to #xed settings of 0.5V and 1.2V depending on how the FB pin is con#gured.

Features

■ Input Voltage as low as 1.45V

■ 500mV dropout @ 3A

■ Adjustable output from 0.5V to 3.8V

■ Over current and over temperature protection

■ Enable pin

■ 10μA quiescent current in shutdown

■ Full industrial temperature range

■ Available in SOIC-8-EDP Lead-free package, fully WEEE and RoHS compliant

Applications

■ Telecom/Networking cards

■ Motherboards/Peripheral cards

■ Industrial applications

■ Wireless infrastructure

■ Set top boxes

■ Medical equipment

■ Notebook computers

■ Battery powered systems

SC4216STRT屬于集成電路（IC） > 線性 + 開關(guān)穩(wěn)壓器。Semtech Corporation制造生產(chǎn)的SC4216STRT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。