The devices have been designed to provide a wide 5V to 40V input voltage range as well as transient response and output accuracy over the entire voltage range using the company's proprietary emulated current mode Constant On-Time (COT) control loop. These devices deliver power to a wide range of industrial and networking equipment typically powered by well regulated 24VDC, classical telecom 18V to 36V or 24VAC supplies.
With a proprietary emulated current mode COT control scheme, the XR76203, XR76205 and XR76208 are able to provide fast line and load transient response using ceramic output capacitors. They require no loop compensation, simplifying circuit implementation and reducing overall component count. The control loop also provides 0.07% load and 0.15% line regulation and maintains constant operating frequency. A selectable power saving mode allows the user to operate in discontinuous mode (DCM) at light current loads, significantly increasing the converter efficiency. A host of protection features, including overcurrent, over-temperature, short-circuit and UVLO, helps achieve safe operation under abnormal operating conditions.
