Found 4 alternatives for ISL8500IRZ by Renesas Electronics America Inc. Pmic Voltage Regulators Dc Dc Switching Regulators — 12-VFDFN Exposed Pad.
IC REG BUCK ADJUSTABLE 1A 12DFN
IC REG BUCK ADJUSTABLE 3A 12DFN
IC REG BCK ADJ 2A/1.7A DL 12DFN
IC REG BUCK ADJUSTABLE 3A 12DFN