Anthony Davis only managed five minutes on his return from injury.
The Lakers knocked out the Suns the last time Phoenix reached the play-offs in 2010 but LA were on the backfoot from the moment Anthony Davis only managed five minutes on his return from injury.
LeBron James top scored for the Lakers with 29, while Phoenix go on to play the Denver Nuggets, who saw off the Portland Trail Blazers 126-115 to secure a 4-2 series win.
The Nuggets were behind by as many as 14 in the third quarter, but Portland were limited to only 14 points in the final 12 minutes as Denver took the game.
Nikola Jokic was the top scorer for Denver with 36, while Michael Porter Junior added 26.