PowerBlox™ XR76203, XR76205, and XR76208 are synchronous step-down regulators that respectively support 3, 5, and 8 A POL supplies. These DC/DC converters provide 5–40 V input range and emulated current mode Constant On-Time (COT) control loop. Latter optimizes transient response and output accuracy over entire voltage range in addition to providing 0.07% load and 0.15% line regulation and maintaining constant operating frequency. Selectable power saving mode is also available.