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Amplifiers/Converters??

STMicro voltage regulator fits analog, digital STBs

Posted: 11 Mar 2003 ?? ?Print Version ?Bookmark and Share

Keywords:stmicroelectronics? lnbp21? voltage regulator ic? stb voltage regulator? power controller?

The LNBP21 voltage regulator from STMicroelectronics features a step-up dc/dc converter that allows it to operate from 8V to 15V, and is integrated with an I?C bidirectional bus interface for device control.

Available in an SO-20 or Power SO-20 package, the device is designed for low-noise block circuits used in analog and digital satellite broadcasting TV receivers. It also features a 22kHz tone signaling to allow the LNB to be controlled using the Eutelsat DiSEqC protocol.

Other features include short circuit protection and diagnostics. It also includes a digital cable-length compensation and has over-temperature protection. Protection against electrostatic discharge of up to 4kV on the power I/O pins has also been included.





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