9 V To 48 V DC-DC Converter Design

nice work sam.

[quote author="jdbakker"]
The fixed input voltage and linear post-regulator eliminate most of the 'hard' parts of a SMPS. If you want an easily-available IC, I suspect you can get similar performance with a 555.
[/quote]

interesting. but also, with the tightly defined input/output conditions perhaps another LT chip could achieve MUCH lower output noise. I know it's possible because one of my employer's designs contains a circuit that does essentially that, but I can't share the details cos Id likely get ganked.

mike p

[quote author="mikep"]with the tightly defined input/output conditions perhaps another LT chip could achieve MUCH lower output noise.[/quote]
This was suggested further upthread, but Samuel really wanted to use this particular chip.

JDB.
[IME, with modern switcher chips, building a quiet converter is mostly a matter of carefully following the data sheets and appnotes]