STMicroelectronics LNBH25L
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.| Part No. | LNBH25L |
|---|---|
| Datasheet | LNBH25L Download |
| Manufacturer |  STMicroelectronics |
| Description | LNB supply and controller |
| Buy | Stock & Price |
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 built-in 22 kHz tone generator suits widely accepted standards
● 22 kHz tone waveform integrity guaranteed also at no load condition
● Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS allowing low power losses
● Overload and overtemperature internal protection with I²C diagnostic bits
● LNB short-circuit dynamic protection
● +/- 4 kV ESD tolerant on output power pins QFN24 (4 x 4 mm) the LNB down-converter in the antenna dish or to the multi-switch box. In this application field, it offers a complete solution with extremely low component count and low power dissipation together with a simple design and I²C standard interfacing.
APPLICATIONS
● STB satellite receivers...
