You can get 80-5-15, but I do not believe anyone is going to 90CLTV. If you only have 5% to put down, I would consider FHA. Even with the up-front MIP fee, because the rate for the monthly MIP is so much less than the rate for the monthly PMI, you are way ahead. Besides that, in certain areas you may not be able to get PMI on 95% if it is considered a declining market.
What type of purchase price are you considering? That will make a big difference when considering this type of financing all together. If you are talking about a high end purchase, you will not be able to get as much.