RT5047BGSP, Схема управления питанием, 8В до 16В, 13.3В до 18.3В LNB выход, 1 LDO, 2 выхода, SOP-8
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The RT5047B is a highly integrated voltage regulator and interface IC, specifically design for supplying power and control signals from advanced satellite set-top box (STB) modules to the LNB down-converter in the antenna dish or to the multi-switch box. The device is consists of the independent current-mode boost controller and low dropout linear regulator along with the circuitry required for 22kHz tone shaping to support DiSEqCTM1.x communications. The RT5047B has fault protection (over-current, over-temperature and under-voltage lockout).
• Wide input supply voltage range: 8V to 16V• Output current limit of 550mA with 6ms timer• Low noise LNB output voltage• High accuracy for 0mA to 500mA current output• Push-pull output stage minimizes 13.3V to 18.3V and 18.3V to 13.3V output transition time• External 22KHz tone input• Meet DiSEqCTM1.x protocol
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