TC1269中文资料300mA CMOS LDO w/ Shutdown and Vref Bypass数据手册Microchip规格书

描述 Description

The TC1269 is a fixed output, high accuracy (typically ±0.5%) CMOS upgrade for older (bipolar) low dropout regulators. Total supply current is typically 50µA at full load (20 to 60 times lower than in bipolar regulators). TC1269 key features include ultra low noise operation (plus optional Bypass input); very low dropout voltage (typically 240mV at full load), and fast response to step changes in load. Supply current is reduced to 0.05µA (typical) and VOUT falls to zero when the shutdown input is low. The TC1269 incorporates both over-temperature and over-current protection. The TC1269 is stable with an output capacitor of only 1µF and has a maximum output current of 300mA.

特性 Features

Very Low Ground Current for Longer Battery Life
Very Low Dropout Voltage
High Output Voltage Accuracy
Standard or Custom Output Voltages
Power-Saving Shutdown Mode
Bypass Input for Ultra-Quiet Operation
Over-Current and Over-Temperature Protection

简介

TC1269属于集成电路（IC）的线性+开关稳压器。由制造生产的TC1269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。