LNBH25L Datasheet (STMicroelectronics)

LNBH25L, LNB supply/controller

Intended for analog and digital satellite receivers/Sat-TV and Sat-PC cards, the LNBH25L is a monolithic voltage regulator and interface IC, assembled in QFN24 (4x4) specifically designed to provide the 13/18 V power supply and the 22 kHz tone signalling to Table 1.

Device summary Order code Pack

LNBH25L Features

* Complete interface between LNB and I²C bus

* Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93% @ 0.5 A)

* Selectable output current limit by external resistor

* Compliant with main satellite receiver output voltage specifications

* Accurate