L5050集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

L5050屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的L5050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。

Features

? AEC-Q100 qualified

? Operating DC supply voltage range 5.6 V to 40 V

? Low dropout voltage

? Low quiescent current consumption

? Up to 100 mA and 2x100 mA as pulsed current

? Precision output voltage 5 V ± 2

? Dual electrically isolated voltage regulators (only for L5050SD)

? Enable input for enabling/disabling the voltage regulator

? Thermal shutdown and short circuit protection

? Wide temperature range (TJ = -40 °C to 150 °C)

Description

L5050 is a 5 V low dropout linear voltage regulator suitable for automotive

applications, available in single (L5050S) or dual isolated (L5050SD) linear output

voltage in a SO-8 package. The LDO delivers up to 50 mA (2x50 mA for the dual

version) of DC load current and consumes as low as 5 μA (per each output in

L5050SD) of quiescent current with device disabled. High output voltage accuracy (±

2) is kept over wide temperature range, line and load variation. The L5050S is able

to deliver up to 100 mA (as pulsed current) and L5050SD up to 2x100 mA (as pulsed

current); duration of current is linked to thermal settings (such as PCB type, ambient

temperature). Enable features (two enables for the dual version) allow enabling or

disabling each output. The maximum input voltage is 40 V. The regulator output

current is internally limited and the device is protected against short circuit, overload

and over temperature conditions. In addition, only low value ceramic capacitor on

output is required for stability.