TC1055-2.8VCT集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TC1055-2.8VCT属于集成电路（IC）的线性+开关稳压器。由微芯科技股份有限公司制造生产的TC1055-2.8VCT稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

GENERAL DESCRIPTION

The TC1054 is a high accuracy (typically ±0.5) CMOS upgrade for older (bipolar) low dropout regulators. Designed specifically for battery-operated systems, the TC1054’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!).

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

■ ERROR Output can be Used as a Low Battery Detector, or Processor Reset Generator

■ Over-Current and Over-Temperature Protection

■ Space-Saving SOT-23A-5 Package

■ Pin Compatible Upgrades for Bipolar Regulators

APPLICATIONS

■ Battery Operated Systems

■ Portable Computers

■ Medical Instruments

■ Instrumentation

■ Cellular/GSMS/PHS Phones

■ Linear Post-Regulators for SMPS

■ Pagers