TC1189中文资料MAX8863/64 120mA Linear Regulator with Auto Discharge数据手册Microchip规格书

描述 Description

Delivering up to 120mA, the TC1188 and TC1189 are fixed output, low-dropout linear regulators that operate from a +2.5V to +6.0V input range. The 50µA supply current remains independent of load, making these devices ideal for battery-operated portable equipment. The output of the TC1188/1189 is preset at 3.15V, 2.84V, 2.80V or 1.80V. (Other output voltage options are available. contact Microchip Technology for more information.) In addition to low-power shutdown, short-circuit protection, and thermal shutdown protection, the TC1189 includes an auto-discharge function that actively discharges the output voltage to ground when the device is in shutdown mode. Both devices are pin-compatible with the Maxim MAX8863/8864 LDOs and are available in SOT-23-5 pack-ages.

特性 Features

Pin-Compatible with MAX8863/8864
Low, 55mV Dropout Voltage @ 50mA IOUT
Low, 50µA Operating Supply Current (Even in Dropout)
140µsec (typ.) Turn-On Response Time from SHDN
Low, 350VRMS Output Noise
Miniature External Components
Thermal Overload Protection
Output Current Limit
Low-Power Shutdown Mode

简介

TC1189属于集成电路（IC）的线性+开关稳压器。由制造生产的TC1189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。