Part Number:LM27761
Hello,
My customer is looking to create a -2.5V rail with >58dB of PSRR @ 100Hz and <1µV/sqrt(Hz) @ 10Hz. Today they are looking at a 2 chip solution with a inverting switch cap device and a low noise LDO. I saw the LM27761 device and wanted to get a better idea of the PSRR at lower frequencies. The datasheet has a typical value at 2MHz but no information or graph for lower frequencies. Is this something you can share?
Thanks!
John