TC2117屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由微芯科技股份有限公司制造生產(chǎn)的TC2117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(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對(duì)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(duì)噪聲高度敏感的應(yīng)用。

General Description

The TC2117 is a fixed, high accuracy (typically ±0.5) CMOS low dropout regulator. Designed specifically for battery operated systems, the TC2117’s CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 80 μA at full load (20 to 60 times lower than in bipolar regulators).

TC2117 key features include ultra low noise, very low dropout voltage (typically 450 mV at full load), and fast response to step changes in load. The TC2117 incorporates both overtemperature and overcurrent protection. The TC2117 is stable with an output capacitor of only 1μF and has a maximum output current of 800 mA. This device is available in 3-Pin SOT-223, and 3-Pin DDPAK packages.

特性 Features

? Fixed Output Voltages: 1.8V, 2.5V, 3.0V, 3.3V

? Very Low Dropout Voltage

? Rated 800 mA Output Current

? High Output Voltage Accuracy

? Standard or Custom Output Voltages

? Overcurrent and Overtemperature Protection

? Space Saving SOT-223 Package

Applications

? 5V to 3.3V Linear Regulator

? Portable Computers

? Instrumentation

? Battery Operated Systems

? Linear Post-Regulator for SMPS

? Core Voltage Supply for FPGAs, PLDs, CPUs, DSPs