The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 414: Battery Charger Regulates Input Voltage (PDF, 125kB) A free Acrobat PDF reader is available from: http://www.adobe.com/products/acrobat/readstep.html We Want Your Feedback! 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™. More Information   APP 414: Jul 09, 1998 MAX639 5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters Full Data Sheet (PDF, 780kB) Free Samples   Download, PDF Format (125kB)  AN414, AN 414, APP414, Appnote414, Appnote 414