Description

The L4925 is a monolithic integrated 5 V voltage regulator with a very low dropout output and additional functions such as power-on reset and programmable reset delay time.

It is designed for supplying microcomputer controlled systems especially in automotive applications.

Features

■ Operating DC supply voltage range 6 V to 28 V

■ Transient supply voltage up to 40 V

■ Extremely low quiescent current

■ High precision output voltage

■ Output current capability up to 500 mA

■ Very low dropout voltage less than 0.6 V

■ Reset circuit sensing the output voltage

■ Programmable reset pulse delay with external capacitor

■ Thermal shutdown and short circuit protections

L4925PD屬于集成電路（IC） > 線性 + 開關(guān)穩(wěn)壓器。意法半導(dǎo)體（ST）集團制造生產(chǎn)的L4925PD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(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。