LT3027

• 产品介绍

LT3027双100mA时，低压差，低噪声，微功率稳压器独立输入

特点

• Low Noise: 20µV_RMS(10Hz to 100kHz) 低噪声_{：20μVRMS（10Hz}至100kHz）
• Low Quiescent Current: 25µA/Channel 低静态电流：25μA/Channel
• Independent Inputs 独立输入
• Wide Input Voltage Range: 1.8V to 20V 宽输入电压范围：1.8V至20V
• Output Current: 100mA/Channel 输出电流：100mA/Channel
• Very Low Shutdown Current: <0.1µA 极低的关断电流：<0.1μA
• Low Dropout Voltage: 300mV at 100mA 低压差：100mA时为300mV
• Adjustable Output from 1.22V to 20V从1.22V至20V的可调输出
• Stable with 1µF Output Capacitor1μF的输出电容器稳定
• Stable with Aluminum, Tantalum or Ceramic Capacitors稳定的铝，钽或陶瓷电容器
• Reverse Battery Protected反向电池保护
• No Protection Diodes Needed无需保护二极管
• Overcurrent and Overtemperature Protected过流和过热保护
• Tracking/Sequencing Capability跟踪/排序功能
• Thermally Enhanced 10-Lead MSOP and DFN Packages耐热增强型10引线MSOP和DFN封è£

描述

The LT®3027 is a dual, micropower, low noise, low dropout regulator with independent inputs.LT®3027双，微功耗，低噪声，低压差稳压器具有独立的输入。 With an external 0.01µF bypass capacitor, output noise is a low 20µV_RMSover a 10Hz to 100kHz bandwidth.与外部0.01μF旁路电容，输出噪声低_{20μVRMS的}是在10Hz至100kHz的带宽。 Designed for use in battery-powered systems, the low 25µA quiescent current per channel makes it an ideal choice.在使用电池供电系统设计，25μA的低静态电流，每通道一个理想的选择。 In shutdown, quiescent current drops to less than 0.1µA.在停机时，小于0.1μA的静态电流下降。 Shutdown control is independent for each channel, allowing for flexibility in power management.关断控制，每个通道独立，从而在电源管理上的灵活性。 The device is capable of operating over an input voltage from 1.8V to 20V, and can supply 100mA of output current from each channel with a dropout voltage of 300mV.该设备是能够从1.8V至20V的输入电压超过操作，并能提供的输出电流从每个通道具有300mV的压降100毫安。 Quiescent current is well controlled in dropout.静态电流得到很好的控制辍学。

The LT3027 regulator is stable with output capacitors as low as 1µF.LT3027稳压器是低至1μF的输出电容器稳定。 Small ceramic capacitors can be used without the series resistance required by other regulators.没有其他监管机构所要求的串联电阻，可用于小型的陶瓷电容器。

Internal protection circuitry includes reverse battery protection, current limiting and thermal limiting protection.内部保护电路包括电池反向保护，限流和热限制保护。 The device is available as an adjustable device with a 1.22V reference voltage.该设备是作为一个具有1.22V参考电压的可调装置。 The LT3027 regulator is available in the thermally enhanced 10-lead MSOP and low profile (0.75mm) 3mm × 3mm DFN packages.LT3027稳压器是在耐热增强型10引线MSOP和扁平（0.75mm）的3mm x 3mm DFN封è£

应用

• Cellular Phones手机
• Pagers寻呼机
• Battery-Powered Systems电池供电系统
• Frequency Synthesizers频率合成器
• Wireless Modems无线调制解调器
• Tracking/Sequencing Power Supplies电源跟踪/排序