picoPSU-90 CHANGE LOG - 01/19/08 AB Change C18 from 6.8nf to 8.2nF - 01/19/08 AB Change C19 from 6.8nf to 10nF - 01/19/08 AB Change R12 from 100K to 47K - 01/19/08 AB Change R13 from 1K to 2.2K - 01/19/08 AB Change Q7 from MMBT3904 to DDTC144ECA (diodes.com) - 01/19/08 CG Change C14, C25 from 0805 to 0603 packaging - 06/06/08 Change C4 fropm 0.1uF to 0.22uF (softened startup ramp for 12V) - 06/19/09 Extend availability for the next 5 years - 02/01/12 Change R16 (PGI) from 1.24K / 0603 / 1% to 4.7K / 0603 / 5% - 06/15/2013 AO4420 is now EOL. Replaced with with AO4476A - 03/10//2016 Extending availability for the next 5 years - 10/10//2020 Extending availability for the next 5 years