20_μA_QUIESCENT_CURRENT_REGULATOR

Published:2009/7/16 20:53:00 Author:Jessie | From:SeekIC

Knowing when the battery voltage is getting low allows equipment to arrange time to save valuable information. The LT1120A not only provides micropower, low-dropout regulation, but also includes a tow-battery detection comparator, all in an eight-lead DIP or SO package. The LT1120A supplies up to 125 mA at regulated voltages from 2.5 to 20 V. The low dropout voltage of 0.6 V (max.) lowers the battery input voltage requirements, and the small 40-μA (max.) quiescent current extends battery life. The LT1120A has yet more functions. The logic-compatible SHUTDOWN pin removes power to the load. The precision 2.5-V reference has the ability to both sink and source current to supply low-power backup circuits. Also, the LT1120A's design prevents excessive current draw when in dropout.



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