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MAX1819：500mA、低压差线性稳压器，UCSP封装

The MAX1819 low-dropout linear regulator operates from a 2.5V to 5.5V supply and delivers a guaranteed 500mA load current with low 120mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see the Selector Guide in the full data sheet) or can be adjusted from 1.25V to 5V with an external resistive-divider. An internal PMOS pass transistor allows the low 125µA supply current to remain independent of load, making this device ideal for portable battery-operated equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, base stations, and notebook computers. Other features include an active-low, open-drain reset output that indicates when the output is out of regulation, a 0.1µA shutdown, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 6-pin UCSP™ package.

关键特性 Guaranteed 500mA Output Current Low 90mV Dropout at 500mA ±1% Initial Output Accuracy Preset Output at 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V Adjustable Output from 1.25V to 5V Power-OK Output Low 125µA Ground Current 0.1µA Shutdown Current Thermal Overload Protection Output Current Limit Tiny 840mW 6-Pin UCSP Package

MAX1819：典型工作电路 应用 基站 蜂窝与无绳电话 坞站 笔记本电脑 掌上电脑 个人数字助理(PDA) USB集线器

数据手册DataSheet

关键参数

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