MIC5208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 MIC5208 is a dual linear voltage regulator with very low dropout voltage (typically 20mV at light loads and 250mV at 50mA), very low ground current (225µA at 10mA output), and better than 3% initial accuracy. It also features individual logic-compatible enable/shutdown control inputs.Designed especially for hand-held battery powered devices, the MIC5208 can be switched by a CMOS or TTL compatible logic signal, or the enable pin can be connected to the supply input for 3-terminal operation. When disabled, power consumption drops nearly to zero. Dropout ground current is minimized to prolong battery life.Key features include current limiting, overtemperature shutdown, and protection against reversed battery.The MIC5208 is available in 3.0V, 3.3V, 3.6V, 4.0V, and 5.0V fixed voltage configurations.

特性 Features

• Micrel Mini 8® MSOP package
• Guaranteed 50mA output
• Low quiescent current
• Low dropout voltage
• Wide selection of output voltages
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
• Zero off-mode current
• Logic-controlled electronic enable

简介

MIC5208属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC5208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。