The prosecutor has substantial discretion to negotiate a plea deal, and may negotiate one whereby you plead to a lesser charge--e.g. a misdomeanor, instead of a felony. Whether the prosecutor will do so depends on a number of factors, including the strength of the case and your prior record. (Note: while judges almost always approve plea deals, they don't have to: there  is a very small, but real, chance that a judge may not approve whatver is worked out.)If the evidence is insufficient, however, there's a chance that you would not be convicted at all; criimes must be proven beyond a reasonable doubt. If there's a problem with the evidence against you, discuss with your attorney whether you should fight the charge rather than plead.