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PowerBlox Family of Voltage Regulators Slide 2
MaxLinear offers a family of synchronous buck regulators comprised of the controller, drivers, bootstrap diode, and MOSFETs in a single package for point-of-load supplies. The XR76203, XR76205, and XR76208 are ideal for applications requiring a wide input voltage range of 3 V to 40 V. They offer a load current rating of 3 A, 5 A and 8 A respectively and operate from a wide input supply voltage range of 5 V to 40 V. This wide input voltage range allows for single supply operation from industry standard 5 V, 12 V, 19.6 V, 24 V, 18-36 V, and rectified 18 VAC and 24 VAC rails. The output voltage can be programmed from 0.6 V to 30 V. Utilizing a proprietary emulated current mode Constant On-Time (COT) control architecture, these devices provide fast line and load transient response, using ceramic output capacitors. They require no loop compensation, simplifying circuit implementation and reducing overall component count leading to high reliability. The control loop also provides 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, thereby significantly increasing the converter efficiency. Protection features including over-current, over-temperature, short-circuit and UVLO, help achieve safe operation under abnormal operating conditions.
PTM Published on: 2016-07-20