STMicroelectronics Special Purpose Regulators LNBP20PD

The LNBP20PD is a monolithic linear voltage regulator designed for use in analog and digital satellite receivers. It provides the necessary powering voltages and interfacing signals to LNB downconverters located in antennas. The device features a complete interface for controlling two LNBs, with logic-selectable output voltages of 13V or 18V, and includes a bypass function for slave operation in dual receiver systems. This regulator incorporates a built-in tone oscillator factory trimmed at 22KHz, facilitating DiSEqC protocol implementation. It has two supply inputs to minimize power dissipation and includes features such as LNB short circuit protection, over-temperature protection, and backward current protection. The LNBP20PD is packaged in a PowerSO-20 format for surface mounting, making it suitable for compact designs. It is particularly useful for engineers looking for a reliable solution for satellite receiver applications.