Care assistant Lorraine Bruce was driving below the speed limit but was distracted by a boisterous crowd standing outside a pub in Neilston, Renfrewshire, when Gavin Currie, 25 stepped out on to the pedestrian crossing to head for The Kinloch Bar.
Bruce, 44, earlier admitted causing Mr Currie's death by driving carelessly, failing to keep a proper lookout and colliding with the victim The accident happened in Main Street, Neilston, on December 28, 2011 when the vehicle she was driving struck him as he was crossing the road.
Defence agent Gordon Ritchie said it was particularly tragic as his client had been driving within the speed limit, paying attention to others whom she saw as posing a potential risk due to uncertainty about what they might do.
The lawyer said that his client told police afterwards: "I just didn't see him."
He said it was ironic that Bruce, of Neilston, had found herself in the dock to answer such a serious charge, as CCTV footage captured at the time showed other vehicles being driven past the same scene at much higher speeds.
Mr Ritchie said: "The tragedy for Bruce and the family of Mr Currie is that she was driving while sober, within the speed limit and while paying attention to what was happening to her left."
The court was told that she wished to express condolences to the family of the deceased.
Bruce was also banned from driving for 12 months.