MIC5256中文资料150mA uCap LDO w/Flag数据手册Microchip规格书

描述 Description

The MIC5256 is an efficient, precise CMOS voltage regulator. It offers better than 1% initial accuracy, extremely low dropout voltage (typically 135mV at 150mA) and low ground current (typically 90µA) over load. The MIC5256 features an error flag that indicates an output fault condition such as overcurrent, thermal shutdown, and dropout.Designed specifically for handheld and battery-powered devices, the MIC5256 provides a TTL logic-compatible enable pin. When disabled, power consumption drops nearly to zero.The MIC5256 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in handheld wireless devices.Key features include current limit, thermal shutdown, faster transient response, and an active clamp to speed up device turnoff. Available in the IttyBitty® SOT-23-5 package and the new Thin SOT-23-5, which offers the same footprint as the standard IttyBitty® SOT-23-5, but is only 1mm tall. The MIC5256 offers a range of output voltages.

特性 Features

• Input voltage range: 2.7V to 6.0V
• Thin SOT package: 1mm height
• Error flag indicates fault condition
• Stable with ceramic output capacitor
• Ultra-low dropout: 135mV at 150mA
• 1.0% initial accuracy
• 2.0% over temperature
• Low quiescent current: 90µA
• Tight load and line regulation
• Thermal shutdown and current limit protection
•Zero off-mode current
• TTL logic-controlled enable input

简介

MIC5256属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC5256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。