TC1263屬于集成電路（IC）的線性+開關穩(wěn)壓器。由微芯科技股份有限公司制造生產(chǎn)的TC1263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。

General Description

The TC1263 is a fixed output, high accuracy (typically ±0.5) CMOS low dropout regulator. Designed specifically for battery-operated systems, the TC1263’s CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 80μA at full load (20 to 60 times lower than in bipolar regulators).

TC1263 key features include ultra low noise operation, very low dropout voltage (typically 350mV at full load), and fast response to step changes in load. The TC1263 incorporates both over temperature and over current protection. The TC1263 is stable with an output capacitor of only 1μF and has a maximum output current of 500mA. It is available in 8-Pin SOIC, 5-Pin TO-220 and 5-Pin DDPAK packages.

特性 Features

? Very Low Dropout Voltage

? 500mA Output Current

? High Output Voltage Accuracy

? Standard or Custom Output Voltages

? Over Current and Over Temperature Protection

? SHDN Input for Active Power Management

? ERROR Output Can Be Used as a Low Battery Detector (SOIC only)

Applications

? Battery Operated Systems

? Portable Computers

? Medical Instruments

? Instrumentation

? Cellular/GSM/PHS Phones

? Linear Post-Regulators for SMPS

? Pagers