Former deputy Commons speaker Nigel Evans said he had been left in a "land of limbo" and the decision to step aside in the wake of charges of sex offences against seven men had been the "most painful thing I have endured in my life".
The Ribble Valley MP made a personal statement to MPs after deciding to step aside after charges were announced on Tuesday night.
Earlier, Commons Speaker John Bercow told MPs he was "warmly grateful" to Mr Evans for his three years service as a deputy, adding he had been "highly competent, fair and good-humoured".
Mr Evans said: "I hope you will bear with me while I make this statement, it's been a few years since I made a speech in this chamber and I'm sad to say this is the speech.
"As many of you will know following recent allegations, I was charged with alleged offences yesterday. I now have the opportunity to robustly defend my innocence and seek acquittal. I have therefore decided the best course of action is for me to return to the backbenches and this is a decision I have made myself after careful consideration.
"I did not have the Conservative whip as deputy speaker and I am not seeking its return until after the conclusion of events. I will sit as an independent MP for the Ribble Valley."
Mr Evans said: "It was one of the happiest days of my life when I was elected deputy speaker in 2010, it was an endorsement of my abilities to do the job by my colleagues and for that I am grateful.
"Since these allegations, I have not been able to fully fulfil my duties in the chair, which left me in a land of limbo. None of us were elected to the fine office of Member of Parliament to be put in that invidious position, unable to fully fulfil the reason why we were sent here."
Mr Evans said: "This is clearly the most painful thing I have endured in my life alongside the loss of my mother in 2009 and the loss of my brother earlier this year.
"Winston Churchill said when you are going through hell, keep going. Sage advice. And so I will see this through to the end with the support of the people that mean so much to me."