描述 Description

The TLE42744 is a monolithic integrated low dropout voltage regulator for load currents up to 400 mA. An input voltage up to 40 V is regulated to V Q,nom = 5 V / 3.3 V with a precision of ±2%. The device is designed for the harsh environment of automotive applications. Therefore it is protected against overload, short circuit and over temperature conditions by the implemented output current limitation and the over temperature shutdown circuit. The TLE42744 can be also used in all other applications requiring a stabilized 5 V / 3.3 V voltage. Due to its very low quiescent current the TLE42744 is dedicated for use in applications permanently connected to V BAT .

特性 Features

? Very Low Current Consumption
? Output Voltages 5 V and 3.3 V ±2%
? Output Current up to 400 mA
? Very Low Dropout Voltage
? Output Current Limitation
? Reverse Polarity Protection
? Over temperature Shutdown
? Wide Temperature Range
? From -40 °C up to 150 °C
? Green Product (RoHS compliant)
? AEC Qualified

優(yōu)勢:
? Robust protection features
? Wide input operation and temperature range

應(yīng)用 Application

? Automotive general

簡介

TLE42744EV50屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由制造生產(chǎn)的TLE42744EV50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(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。