描述 Description

The IFX21401 is a monolithic integrated low dropout voltage tracker in a tiny SMD package PG-SCT595-5 with excellent thermal resistance. It is designed to supply off-board loads (e.g. sensors) in harsh environments. The IC protects itself in case of overload, overtemperature, reverse polarity as well as output short circuit to battery or ground. Supply voltages up to V I = 45 V are regulated to a reference voltage applied at the adjust input “ADJ” with high accuracy. The output “Q” is able to drive loads up to 50 mA. In order to reduce the quiescent current to a minimum, the IFX21401 can be switched to stand-by mode by setting the adjust/enable input “ADJ/EN” to “l(fā)ow”.

特性 Features

? 50 mA Output Current Capability
? Tiny and Thermally Enhanced-Package SCT595
? Accurate Output Voltage Tracking
? Stable with Small Output Capacitor
? Low Dropout Voltage, 300mV
? Combined Reference / Enable Input
? Low Current Consumption in Stand-by Mode
? Maximum Input Voltage -42 V ≤ V I ≤ +45 V
? Reverse Polarity Protection
? Output Short Circuit to Ground and Supply Protection
? Overtemperature Protection
? Temperature Range -40 °C ≤ T j ≤ 125 °C
? Green Product (RoHS compliant)

優(yōu)勢:
? High Input Voltage (>30V)
? Smallest Form Factor
? as protection/buffer for an off board load/sensor
? for optimised heat spreading
? Wide Temperature Range

應用 Application

? Smart Metering
? Industrial Automation
? Medical & Healthcare
? Telecom
? Building Automation
? White Goods
? Heating & Cooling Systems (HVAC)

簡介

IFX21401MB屬于集成電路（IC）的線性+開關穩(wěn)壓器。由制造生產(chǎn)的IFX21401MB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。