Power
Dual LNB supply and control voltage regulator IC
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 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 250 to 950 mA, and features inbuilt diagnostics and a wide range of protection capabilities. The features, functions, and high level of performance and robustness easily meet or exceed industry requirements for the latest generation of satellite set-top boxes.
The A8299SETTR-T is supplied in a small (5 mm × 5 mm) low-profile (0.9 mm) QFN 28-pin package (suffix ET).
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