MIC5309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 MIC5309 is a high performance, µCap low dropout regulator that offers ultra-low operating current while maintaining very fast transient response. The MIC5309 can source up to 300mA of output current and can regulate down from a low input supply voltage to increase system efficiency. Ideal for battery-operated applications; the MIC5309 offers extremely low dropout voltage (100mV typically at 300mA load) and low ground current at all load conditions (typically 23µA). The MIC5309 can also be put into a zero off-mode current state, drawing virtually no current when disabled.

特性 Features

• Input voltage range: 1.7V to 5.5V
• Guaranteed 300mA over temperature
• Ultra-low dropout voltage: 100mV for typical 300mA load
• High PSRR: up to 90dB at 1kHz
• Output Voltage range: 0.8V to 2.0V
• Very low ground current: 23µA under full load
• Bias supply voltage range: 2.5V to 5.5V
• Stable with 1µF ceramic output capacitor
• 300mA maximum output current at 1.7V input voltage
• Very fast transient response ideal for digital loads
• Thermal shutdown and current limit protection
• Cost effective 6-pin TSOT-23 package

简介

MIC5309属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC5309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。