ISL80410 Linear Regulators Renesas Electronics ISL80410 Linear Regulators offer high voltage, adjustable VOUT, and low quiescent current. The ISL80410 devices are ideally suited for “always-on” and “keep-alive” applications. The ISL80410 operates from an input voltage of +6V to +40V under normal operating conditions and consumes 18µA of quiescent current at no load.