TC1014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TC1014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 TC1014 is a high accuracy (typically ±0.5) CMOS upgrade for older (bipolar) low dropout regulators such as the LP2980. Designed specifically for battery-operated systems, the TC1014’s CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 50μA at full load (20 to 60 times lower than in bipolar regulators!).

TC1014 key features include ultra low-noise operation (plus optional Bypass input); very low dropout voltage (typically 95mV at full load) and internal feed-forward compensation for fast response to step changes in load. Supply current is reduced to less than 1μA when the shutdown input is low. The TC1014 also incorporates both over-temperature and over-current protection.

The TC1014 is stable with an output capacitor of only 1μF and has a maximum output current of 100mA. For higher output versions, please see the TC1107, TC1108, TC1173 (IOUT = 300mA) data sheets.

FEATURES

■ Zero Ground Current for Longer Battery Life!

■ Very Low Dropout Voltage

■ Guaranteed 50mA Output

■ High Output Voltage Accuracy

■ Standard or Custom Output Voltages

■ Power-Saving Shutdown Mode

■ Reference Bypass Input for Ultra Low-Noise Operation

■ Over-Current and Over-Temperature Protection

■ Space-Saving SOT-23A-5 Package

■ Pin Compatible Upgrade for MIC5205 and NSC2980

APPLICATIONS

■ Battery Operated Systems

■ Portable Computers

■ Medical Instruments

■ Instrumentation

■ Cellular / GSM / PHS Phones

■ Linear Post-Regulator for SMPS

■ Pagers