SC1453集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

SC1453屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由Semtech Corporation制造生產(chǎn)的SC1453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。

Description

The SC1453 is a low dropout linear regulator that operates from a +2.25V to +6.5V input range and delivers up to 150mA. A PMOS pass transistor allows the low 75μA supply current to remain independent of load, making these devices ideal for battery operated portable equipment such as cellular phones, cordless phones and personal digital assistants.

Features

◆ “2982/5205” compatible pinout

◆ Guaranteed 150 mA output current

◆ 2 output accuracy guaranteed over line, load and temperature

◆ Very small external components - designed to work with ceramic capacitors

◆ Low 26μVRMS output noise (1.5V option, CIN = COUT = 1μF, CBYP = 10nF)

◆ Very low supply current

◆ Thermal overload protection

◆ Reverse battery protection

◆ Low power shutdown

◆ Full industrial temperature range

◆ Very low profile packaging available (1mm max. height)

◆ Surface mount packaging (5 pin SOT-23 and TSOT-23)

◆ Available in Lead-free packages, fully WEEE and RoHS compliant

Applications

◆ Battery Powered Systems

◆ Cellular Telephones

◆ Cordless Telephones

◆ Personal Digital Assistants

◆ Portable Instrumentation

◆ Modems

◆ PCMCIA cards