MIC5205数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The MIC5205 is an efficient linear voltage regulator with ultra-low noise output, very low dropout voltage (typically 17mV at light loads and 165mV at 150mA), and very low ground current (600µA at 100mA output). The MIC5205 offers better than 1% initial accuracy.Designed especially for handheld, battery-powered devices, the MIC5205 includes a CMOS- or TTL-compatible enable/shutdown control input. When shut down, power consumption drops nearly to zero. Regulator ground current increases only slightly in dropout, further prolonging battery life.Key MIC5205 features include a reference bypass pin to improve its already excellent low-noise performance, reversed-battery protection, current limiting, and over-temperature shutdown.The MIC5205 is available in fixed and adjustable output voltage versions in a small SOT-23-5 package.For low-dropout regulators that are stable with ceramic output capacitors, see the µCap MIC5255/MIC5256/MIC5247.

特性 Features

• Ultra-low noise output
• High output voltage accuracy
• Guaranteed 150mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Reverse battery protection
• Zero off-mode current
• Logic-controlled electronic enable

简介

MIC5205属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC5205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。