LNBP21 Overview
Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBP21 is a monolithic voltage regulator and interface IC, assembled in SO-20 and PowerSO-20, specifically designed to provide the power and the 13/18V, 22KHz tone signalling to the LNB SCHEMATIC DIAGRAM Gate Sense Step-up Controller LNBP21 LT1 Feedback LT2 Vup Vcc Byp OUT Preregul.+ U.V.lockout +P.ON res. Enable I Select V Select...