描述 Description

It is designed to supply microcontroller controlled systems especially in automotive applications.

特性 Features

? Operating DC Supply Voltage Range 5 V to 28 V
? Transient Supply Voltage up to 40 V
? Extremely low Quiescent Current in Standby Mode
? High Precision Standby Output Voltage 5 V ±1%
? Output Current Capability up to 100 mA
? Very low Dropout Voltage less than 0.5 V
? Reset Circuit sensing the Output Voltage
? Programmable Reset Pulse Delay with External Capacitor
? Voltage Sense Comparator
? Thermal Shutdown and Short Circuit Protections
? Suitable for Use in Automotive Electronics
? Green Product (RoHS)
? AEC Qualified

優(yōu)勢:
?Cost effective voltage regulator with reset and early warning
?Compatible with 4949 variants
?High reset immunity

應用 Application

?Automotive voltage regulator for microcontroller

簡介

TLF4949EJ屬于集成電路（IC）的線性+開關穩(wěn)壓器。由制造生產(chǎn)的TLF4949EJ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)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。