描述 Description

The TLE42994V33 is a monolithic integrated low dropout voltage regulator, especially designed for automotive applications that need to be in ON state during the car's engine is turned off. An input voltage up to 45 V is regulated to an output voltage of 3.3 V. The component is able to download up to 150 mA. It Is short-circuit, protected by the implemented current limitation and has an integrated over temperature shutdown. A reset signal is generated for an output voltage V Q,RT of typically 3.1 V. This threshold can be decreased by an external resistor divider The power-on reset delay time can be programmed by the external delay capacitor. The additional sense comparator provides an early warning function: Any voltage (e.g. the input voltage) can be monitored, an under voltage condition is indicated by setting the comparator's output to low. Additionally, an Enable function permitting enabling/disabling the regulator is also included. In case the regulator is disabled it consumes less current than 1 uA.

特性 Features

? Output Voltage 3.3 V + 2%
? Output Current up to 150 mA
? Extreme Low Current Consumption In ON State
? Enable Function: Below 1 uA Current Consumption In OFF State
? Early Warning
? Power-on and Under voltage Reset with Programmable Delay Time
? Reset Low Down to V Q = 1 V
? Adjustable Reset Threshold
? Very Low Dropout Voltage
? Output Current Limitation
? Reverse Polarity Protection
? Over temperature Protection
? Suitable for Use in Automotive Electronics
? Wide Temperature Range from -40 °C up to 150 °C
? Input Voltage Range from -40 V to 45 V
? Green Product (RoHS compliant)
? AEC Qualified

優(yōu)勢(shì):
? Robust Protection Features
? Wide Input Operation and Temperature Range

應(yīng)用 Application

? Automotive General

簡介

TLE42994EV33屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由制造生產(chǎn)的TLE42994EV33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。