A step-up for this voltage (12->27) should be fairly easily to make, a generic MC34063 would do fine, or any other if you care about efficiency.
For example lookt at the LT8330 http://cds.linear.com/docs/en/datasheet/8330fa.pdf On page 18 you can find a design for a 12V to 24V, you easly can reach 27 by just adjusting the feedback resistors. For the 1.8V a normal LDO would do, but this would create heat, so i suggest using a heatsink. Or look at dc-dc desings for 1.8V (since 1.8 is a more used voltage, and most regulators can be adjusted) -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/92f7a894-8aa8-4bac-a5f4-c4a9686070bb%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
