MIC69151中文资料LDO Regulators Products数据手册Microchip规格书

描述 Description

The MIC69151/153 is the 1.5A output-current member of the MIC69xxx family of high current, low voltage regulators that support currents of 1A, 1.5A, 3A, and 5A. The MIC69151/153 operates from a single low voltage supply, yet offers high precision and ultra-low dropout of 500mV under worst case conditions.
The MIC69151/153 operates from an input voltage of 1.65V to 5.5V. It is designed to drive digital circuits requiring low voltage at high currents (i.e. PLDs, DSP, microcontroller, etc.). These regulators are available in adjustable and fixed output voltages including 1.8V. The adjustable version can support output voltages down to 0.5V.
The µCap design of the MIC69151/153 is optimized for stability with low value, low-ESR ceramic output capacitors.
Features of the MIC69151/153 include thermal shutdown and current limit protection. Logic-enable and error flag pins are also available.

特性 Features

·Single input voltage range: VIN: 1.65V to 5.5V
·Maximum dropout (VIN - VOUT) of 500mV over temperature
·Adjustable output voltage down to 0.5V
·Stable with 10µF ceramic output capacitor
·Excellent line and load regulation specifications
·Logic controlled shutdown
·Thermal shutdown and current limit protection
·Available -40°C to +125°C junction temperature

简介

MIC69151属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC69151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。