The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 40: Uninterruptible 5V Supply Has Low Power Consumption (PDF, 1.9MB) A free Acrobat PDF reader is available from: http://www.adobe.com/products/acrobat/readstep.html Related Parts   APP 40: Jul 09, 1998 MAX630 CMOS Micropower Step-Up Switching Regulator Full Data Sheet (PDF, 264kB) Free Samples MAX666 Dual Mode™ 5V Programmable Micropower Voltage Regulators Full Data Sheet (PDF, 376kB) Free Samples Automatic Updates Would you like to be automatically notified when new application notes are published in your areas of interest? Sign up for EE-Mail™. We Want Your Feedback!   Download, PDF Format (1.9MB)  AN40, AN 40, APP40, Appnote40, Appnote 40