The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 10: Lower Operating Frequency Improves ICL7660 Voltage-Conversion Efficiency (PDF, 58kB) 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 10: Jul 09, 1998 ICL7660 Switched-Capacitor Voltage Converters Full Data Sheet (PDF, 128kB)   Download, PDF Format (58kB)  AN10, AN 10, APP10, Appnote10, Appnote 10