MIC5201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 MIC5201 is an efficient linear voltage regulator with very low dropout voltage (typically 17mV at light loads and 200mV at 100mA) and very low ground current (1mA at 100mA output), offering better than 1% initial accuracy with a logic-compatible on-off switching input.Designed especially for handheld battery-powered devices, the MIC5201 can be switched by a CMOS- or TTL-compatible enable signal. This enable control may be connected directly to VIN if unneeded. When disabled, power consumption drops nearly to zero. The ground current of the MIC5201 increases only slightly in dropout, further prolonging battery life. Key MIC5201 features include current limiting, over-temperature shutdown, and protection against reversed battery.The MIC5201 is available in several fixed voltages and accuracy configurations. It features the same pinout as the LT1121 with better performance.

特性 Features

• High output voltage accuracy
• Variety of output voltages
• Guaranteed 150mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Reversed battery protection
• Load-dump protection (fixed voltage versions)
• Zero off-mode current state
• Logic-controlled electronic enable
• Available in SOIC-8 and SOT-223 packages

简介

MIC5201属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC5201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。