LDO with smaller output noise and bigger PSRR

I'm designing a RF module using a transciever which need a very stable supply for the VCO and PLL. The requirements are: availability (US), smallest size (SOT23, SC70), low noise and high PSRR, around 2.8V on output and less than 100mA load.
So far I found MAX8510 which theoretically has less than 60uVpp noise and 78dB PSRR at 1Khz. However my previous experience with MAXIM LDO's shows that the noise is much bigger on the board at the LDO output, than specified in the datasheet. If there is a switching load on the board (as an oscillator) supplied from another separate LDO, the noise is bigger, even with all rejecting capacitors
and splitted grounds.

Anyone have some experience with MAX8510 or with other low noise LDO regulators of the same type/category ?

thx,

i only design a ldo with 99dB noise at 100kHz

Williamy: Are you sure your LDO's spec?
Not easy to understand.

I'm designing LDO .But i still not have much documents.Can you send me schematic and some documents??
Thanks!!

if you want to using this LDO for RF VCO/PLL, I suggest that u must care the 1~100kHz output noise which will affect the close-in noise about pll/vco. It's really really true, but I don't think the MAXIM's 60uV is enough.