MIC5305中文资料150mA uCap Ultra-Low Dropout LDO数据手册Microchip规格书

描述 Description

The MIC5305 is a high-performance, 150mA LDO regulator, offering extremely high PSRR and very low noise while consuming low ground current. Ideal for battery-operated applications, the MIC5305 features 1% accuracy, extremely low dropout voltage (60mV at 150mA), and low ground current at light load (typically 90µA). Equipped with a logic-compatible enable pin, the MIC5305 can be put into a zero-off-mode current state, drawing no current when disabled. The MIC5305 is a µCap design operating with very small ceramic output capacitors for stability, thereby reducing required board space and component cost.

特性 Features

• Ultra-low dropout voltage: 60mV at 150mA
• Input voltage range: 2.25V to 5.5V
• Stable with ceramic output capacitor
• 150mA guaranteed output current
• Low output noise: 20µVrms
• Low quiescent current: 90µA total
• High PSRR: up to 85dB at 1kHz
• Less than 30µs turn-on time w/CBYP = 0.01µF
• ±1.0% initial accuracy
• ±2.0% over temperature
• Thermal shutdown protection
• Current limit protection
• Thin SOT-23-5 package

简介

MIC5305属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC5305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。