MIC5317中文资料Single, High Performance 150mA LDO数据手册Microchip规格书

描述 Description

The MIC5317 is a high performance 150mA low dropout regulator offering high power supply rejection (PSRR) in an ultra-small 1mm x 1mm package for stringent space requirements and demanding performance. The MIC5317 operates from an input voltage from 2.5V to 6.0V and is capable of providing the output voltages of 1.0V to 3.6V making it ideal for USB port or 6V AC adaptor applications.The MIC5317 offers 2% initial accuracy, low dropout voltage (155mV @ 150mA), and low ground current (typically 29µA). The MIC5317 can also be put into a zero-off-mode current state, drawing virtually no current when disabled.The MIC5317 is available in several advanced packages including a lead-free (RoHS-compliant) 1mm x 1mm Thin DFN occupying only 1mm2 of PCB area, a 75% reduction in board area compared to SC-70 and 2mm x 2mm DFN packages. It is also available in a SOT23-5 and TSOT23-5 package.The MIC5317 has an operating junction temperature range of -40°C to 125°C.

特性 Features

• Tiny 1mm x 1mm Thin DFN, SOT23-5 and TSOT23-5 packages
• Wide 2.5V to 6V operating range
• 150mA guaranteed output current
• Stable with 1µF ceramic output capacitors
• Low dropout voltage: 155mV @ 150mA
• Excellent load/line transient response
• Low quiescent current: 29µA
• High PSRR: 70dB
• Thermal-shutdown and current-limit protection

简介

MIC5317属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC5317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。