Peanut Butter Cheesecake with Caramelized Banana Topping

Name: Peanut Butter Cheesecake with Caramelized Banana Topping
Ingredients: 18 whole graham crackers, coarsely broken; 10 tablespoons (1 1/4 sticks) unsalted butter, diced; 6 tablespoons (packed) golden brown sugar; 3 8-ounce packages cream cheese, room temperature; 1 cup creamy (smooth) natural peanut butter (made with only peanuts and salt); 3/4 cup sugar; 1/3 cup (packed) golden brown sugar; 1 1/2 teaspoons vanilla extract; 4 large eggs; 1/3 cup sour cream topping; 1/2 cup (1 stick) unsalted butter, room temperature, diced; 1/2 cup (packed) golden brown sugar; 7 firm but ripe bananas