The new A8299 from Allegro MicroSystems Europe is a robust dual-channel low-noise block (LNB) regulator, designed to provide the power and interface signals via coaxial cable to the LNB down-converters used in analogue and digital satellite receivers.
The A8299 is a monolithic linear and switching voltage regulator which minimises the need for external components by integrating the boost switch and compensation circuitry within the low-profile package. The boost regulator architecture allows the use of smaller external components such as ceramic capacitors, which minimises the solution footprint and height profile as opposed to using electrolytic capacitors.
The A8299 offers an adjustable LNB output current limit from 250mA to 950mA, and features in-built diagnostics and a wide range of protection capabilities.
The A8299SETTR-T is supplied in a small (5mm × 5mm), low-profile (0.9mm) QFN 28-pin package (suffix ET), and its features and functions easily meet or exceed industry requirements for the latest generation of satellite set-top boxes.