Alternative for RP500x dc/dc converter IC

[Vicus]

I have to replace a dc/dc converter in a Korg triton tactile. It's impossible to find the model by the marking on it but I find in another product the same dsp and I think the same dcdc converter. It's a RP500N333 but this part is impossible to obtain in small quantity. Does anyone know an alternative that is more available?
https://www.nisshinbo-microdevices.co.jp/en/pdf/datasheet/rp500-ea.pdf
Thanks.

[Vicus]

My threads always generate a lot of interest.

[Vicus]

By the way the max1921 seem to be what I'm looking for but need to be rotated 180°.

[fzabkar]

By the way the max1921 seem to be what I'm looking for but need to be rotated 180°.

 Clever hack! 

[Vicus]

An update jus for fun (my fun). I choose the wrong voltage. The 1V5 is shorted not the 3V3. I found also that Ti LM3670 and Microchip MCP1603 should works, 180° rotate.